{"id":13077,"date":"2016-08-24T13:00:44","date_gmt":"2016-08-24T17:00:44","guid":{"rendered":"http:\/\/hobbyspace.com\/Blog\/?p=13077"},"modified":"2016-08-23T19:22:59","modified_gmt":"2016-08-23T23:22:59","slug":"eso-earth-scale-planet-found-in-habitable-zone-of-our-nearest-star-proxima-centauri","status":"publish","type":"post","link":"https:\/\/hobbyspace.com\/Blog\/?p=13077","title":{"rendered":"ESO: Earth scale planet found in habitable zone of our nearest star, Proxima Centauri"},"content":{"rendered":"<p>This <a href=\"https:\/\/www.eso.org\/\" target=\"_blank\">ESO<\/a> (European Southern Observatory) report\u00a0has had\u00a0probably the\u00a0most violated embargo of any ESO news. Great to see the full report finally made available to everyone:<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.eso.org\/public\/news\/eso1629\/?lang\" target=\"_blank\"><strong>Planet Found in Habitable Zone Around Nearest Star<\/strong><br \/>\n<\/a><em>Pale Red Dot campaign reveals Earth-mass world in orbit around Proxima Centauri<\/em><\/p>\n<figure id=\"attachment_13085\" aria-describedby=\"caption-attachment-13085\" style=\"width: 500px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629j1.jpg\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"13085\" data-permalink=\"https:\/\/hobbyspace.com\/Blog\/?attachment_id=13085\" data-orig-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629j1.jpg\" data-orig-size=\"700,455\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;ESO\/M. Kornmesser&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;This artist\\u2019s impression shows a view of the surface of the planet Proxima b orbiting the red dwarf star Proxima Centauri, the closest star to the Solar System. The double star Alpha Centauri AB also appears in the image. Proxima b is a little more massive than the Earth and orbits in the habitable zone around Proxima Centauri, where the temperature is suitable for liquid water to exist on its surface.&quot;,&quot;created_timestamp&quot;:&quot;1472065200&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;Artist&#039;s impression of the planet orbiting Proxima Centauri (ann&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Artist&amp;#8217;s impression of the planet orbiting Proxima Centauri (ann\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;This artist\u2019s impression shows a view of the surface of the planet Proxima b orbiting the red dwarf star Proxima Centauri, the closest star to the Solar System. The double star Alpha Centauri AB also appears in the image. Proxima b is a little more massive than the Earth and orbits in the habitable zone around Proxima Centauri, where the temperature is suitable for liquid water to exist on its surface.&lt;\/p&gt;\n\" data-large-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629j1.jpg\" class=\"wp-image-13085\" src=\"http:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629j1.jpg\" alt=\"This artist\u2019s impression shows a view of the surface of the planet Proxima b orbiting the red dwarf star Proxima Centauri, the closest star to the Solar System. The double star Alpha Centauri AB also appears in the image. Proxima b is a little more massive than the Earth and orbits in the habitable zone around Proxima Centauri, where the temperature is suitable for liquid water to exist on its surface.\" width=\"500\" height=\"325\" srcset=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629j1.jpg 700w, https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629j1-300x195.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><figcaption id=\"caption-attachment-13085\" class=\"wp-caption-text\"><em>This artist\u2019s impression shows a view of the surface of the planet Proxima b orbiting the red dwarf star Proxima Centauri, the closest star to the Solar System. The double star Alpha Centauri AB also appears in the image. Proxima b is a little more massive than the Earth and orbits in the habitable zone around Proxima Centauri, where the temperature is suitable for liquid water to exist on its surface.<\/em><\/figcaption><\/figure>\n<p>Astronomers using ESO telescopes and other facilities have found clear evidence of a planet orbiting the closest star to Earth, Proxima Centauri. The long-sought world, designated Proxima b, orbits its cool red parent star every 11 days and has a temperature suitable for liquid water to exist on its surface. This rocky world is a little more massive than the Earth and is the closest exoplanet to us \u2014 and it may also be the closest possible abode for life outside the Solar System. A paper describing this milestone finding will be published in the journal Nature on 25 August 2016.<\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"1600\" height=\"900\" src=\"https:\/\/www.youtube.com\/embed\/lysJduOqads?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p>Just over four light-years from the Solar System lies a red dwarf star that has been named <a href=\"https:\/\/en.wikipedia.org\/wiki\/Proxima_Centauri\" target=\"_blank\">Proxima Centauri<\/a> as it is the closest star to Earth apart from the Sun. This cool star in the constellation of Centaurus is too faint to be seen with the unaided eye and lies near to the much brighter pair of stars known as <a href=\"https:\/\/en.wikipedia.org\/wiki\/Alpha_Centauri\" target=\"_blank\">Alpha Centauri AB<\/a>.<\/p>\n<figure id=\"attachment_13079\" aria-describedby=\"caption-attachment-13079\" style=\"width: 500px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629b1.jpg\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"13079\" data-permalink=\"https:\/\/hobbyspace.com\/Blog\/?attachment_id=13079\" data-orig-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629b1.jpg\" data-orig-size=\"700,742\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;Y. Beletsky (LCO)\/ESO\/ESA\/NASA\/M&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;This picture combines a view of the southern skies over the ESO 3.6-metre telescope at the La Silla Observatory in Chile with images of the stars Proxima Centauri (lower-right) and the double star Alpha Centauri AB (lower-left) from the NASA\/ESA Hubble Space Telescope. Proxima Centauri is the closest star to the Solar System and is orbited by the planet Proxima b, which was discovered using the HARPS instrument on the ESO 3.6-metre telescope.&quot;,&quot;created_timestamp&quot;:&quot;1472065200&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;The location of Proxima Centauri in the southern skies&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"The location of Proxima Centauri in the southern skies\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;This picture combines a view of the southern skies over the ESO 3.6-metre telescope at the La Silla Observatory in Chile with images of the stars Proxima Centauri (lower-right) and the double star Alpha Centauri AB (lower-left) from the NASA\/ESA Hubble Space Telescope. Proxima Centauri is the closest star to the Solar System and is orbited by the planet Proxima b, which was discovered using the HARPS instrument on the ESO 3.6-metre telescope.&lt;\/p&gt;\n\" data-large-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629b1.jpg\" class=\"wp-image-13079\" src=\"http:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629b1.jpg\" alt=\"This picture combines a view of the southern skies over the ESO 3.6-metre telescope at the La Silla Observatory in Chile with images of the stars Proxima Centauri (lower-right) and the double star Alpha Centauri AB (lower-left) from the NASA\/ESA Hubble Space Telescope. Proxima Centauri is the closest star to the Solar System and is orbited by the planet Proxima b, which was discovered using the HARPS instrument on the ESO 3.6-metre telescope.\" width=\"500\" height=\"530\" srcset=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629b1.jpg 700w, https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629b1-283x300.jpg 283w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><figcaption id=\"caption-attachment-13079\" class=\"wp-caption-text\"><em>This picture combines a view of the southern skies over the ESO 3.6-metre telescope at the La Silla Observatory in Chile with images of the stars Proxima Centauri (lower-right) and the double star Alpha Centauri AB (lower-left) from the NASA\/ESA Hubble Space Telescope. Proxima Centauri is the closest star to the Solar System and is orbited by the planet Proxima b, which was discovered using the HARPS instrument on the ESO 3.6-metre telescope.<\/em><\/figcaption><\/figure>\n<p>During the first half of 2016 Proxima Centauri was regularly observed with the <a href=\"http:\/\/www.eso.org\/instruments\/harps\/\" target=\"_blank\">HARPS spectrograph<\/a> on the <a href=\"http:\/\/www.eso.org\/public\/teles-instr\/lasilla\/36\/\" target=\"_blank\">ESO 3.6-metre telescope<\/a> at La Silla in Chile and simultaneously monitored by other telescopes around the world <a href=\"#1\">[1]<\/a>. This was the <em><a href=\"https:\/\/palereddot.org\/\" target=\"_blank\">Pale Red Dot<\/a><\/em> campaign, in which a team of astronomers led by Guillem Anglada-Escud\u00e9, from Queen Mary University of London, was looking for the tiny back and forth wobble of the star that would be caused by the gravitational pull of a possible orbiting planet <a href=\"#2\">[2]<\/a>.<\/p>\n<figure id=\"attachment_13080\" aria-describedby=\"caption-attachment-13080\" style=\"width: 500px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629c1.jpg\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"13080\" data-permalink=\"https:\/\/hobbyspace.com\/Blog\/?attachment_id=13080\" data-orig-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629c1.jpg\" data-orig-size=\"700,476\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;ESO\/M. Kornmesser\/G. Coleman&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;This infographic compares the orbit of the planet around Proxima Centauri (Proxima b) with the same region of the Solar System. Proxima Centauri is smaller and cooler than the Sun and the planet orbits much closer to its star than Mercury. As a result it lies well within the habitable zone, where liquid water can exist on the planet\\u2019s surface.&quot;,&quot;created_timestamp&quot;:&quot;1472065200&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;Proxima Centauri and its planet compared to the Solar System&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Proxima Centauri and its planet compared to the Solar System\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;This infographic compares the orbit of the planet around Proxima Centauri (Proxima b) with the same region of the Solar System. Proxima Centauri is smaller and cooler than the Sun and the planet orbits much closer to its star than Mercury. As a result it lies well within the habitable zone, where liquid water can exist on the planet\u2019s surface.&lt;\/p&gt;\n\" data-large-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629c1.jpg\" class=\"wp-image-13080\" src=\"http:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629c1.jpg\" alt=\"This infographic compares the orbit of the planet around Proxima Centauri (Proxima b) with the same region of the Solar System. Proxima Centauri is smaller and cooler than the Sun and the planet orbits much closer to its star than Mercury. As a result it lies well within the habitable zone, where liquid water can exist on the planet\u2019s surface.\" width=\"500\" height=\"340\" srcset=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629c1.jpg 700w, https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629c1-300x204.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><figcaption id=\"caption-attachment-13080\" class=\"wp-caption-text\"><em>This infographic compares the orbit of the planet around Proxima Centauri (Proxima b) with the same region of the Solar System. Proxima Centauri is smaller and cooler than the Sun and the planet orbits much closer to its star than Mercury. As a result it lies well within the habitable zone, where liquid water can exist on the planet\u2019s surface.<\/em><\/figcaption><\/figure>\n<p>As this was a topic with very wide public interest, the progress of the campaign between mid-January and April 2016 was shared publicly as it happened on the <em><a href=\"https:\/\/palereddot.org\/\" target=\"_blank\">Pale Red Dot<\/a><\/em> website and via social media. The reports were accompanied by numerous outreach articles written by specialists around the world.<\/p>\n<figure id=\"attachment_13081\" aria-describedby=\"caption-attachment-13081\" style=\"width: 500px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629d1.jpg\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"13081\" data-permalink=\"https:\/\/hobbyspace.com\/Blog\/?attachment_id=13081\" data-orig-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629d1.jpg\" data-orig-size=\"700,234\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;ESO\/G. Anglada-Escud\\u00e9&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;This plot shows how the motion of Proxima Centauri towards and away from Earth is changing with time over the first half of 2016. Sometimes Proxima Centauri is approaching Earth at about 5 kilometres per hour \\u2014 normal human walking pace \\u2014 and at times receding at the same speed. This regular pattern of changing radial velocities repeats with a period of 11.2 days. Careful analysis of the resulting tiny Doppler shifts showed that they indicated the presence of a planet with a mass at least 1.3 times that of the Earth, orbiting about 7 million kilometres from Proxima Centauri \\u2014 only 5% of the Earth-Sun distance.&quot;,&quot;created_timestamp&quot;:&quot;1472065200&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;The motion of Proxima Centauri in 2016, revealing the fingerprin&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"The motion of Proxima Centauri in 2016, revealing the fingerprin\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;This plot shows how the motion of Proxima Centauri towards and away from Earth is changing with time over the first half of 2016. Sometimes Proxima Centauri is approaching Earth at about 5 kilometres per hour \u2014 normal human walking pace \u2014 and at times receding at the same speed. This regular pattern of changing radial velocities repeats with a period of 11.2 days. Careful analysis of the resulting tiny Doppler shifts showed that they indicated the presence of a planet with a mass at least 1.3 times that of the Earth, orbiting about 7 million kilometres from Proxima Centauri \u2014 only 5% of the Earth-Sun distance.&lt;\/p&gt;\n\" data-large-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629d1.jpg\" class=\"wp-image-13081\" src=\"http:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629d1.jpg\" alt=\"This plot shows how the motion of Proxima Centauri towards and away from Earth is changing with time over the first half of 2016. Sometimes Proxima Centauri is approaching Earth at about 5 kilometres per hour \u2014 normal human walking pace \u2014 and at times receding at the same speed. This regular pattern of changing radial velocities repeats with a period of 11.2 days. Careful analysis of the resulting tiny Doppler shifts showed that they indicated the presence of a planet with a mass at least 1.3 times that of the Earth, orbiting about 7 million kilometres from Proxima Centauri \u2014 only 5% of the Earth-Sun distance.\" width=\"500\" height=\"167\" srcset=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629d1.jpg 700w, https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629d1-300x100.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><figcaption id=\"caption-attachment-13081\" class=\"wp-caption-text\"><em>This plot shows how the motion of Proxima Centauri towards and away from Earth is changing with time over the first half of 2016. Sometimes Proxima Centauri is approaching Earth at about 5 kilometres per hour \u2014 normal human walking pace \u2014 and at times receding at the same speed. This regular pattern of changing radial velocities repeats with a period of 11.2 days. Careful analysis of the resulting tiny Doppler shifts showed that they indicated the presence of a planet with a mass at least 1.3 times that of the Earth, orbiting about 7 million kilometres from Proxima Centauri \u2014 only 5% of the Earth-Sun distance.<\/em><\/figcaption><\/figure>\n<p>Guillem Anglada-Escud\u00e9 explains the background to this unique search:<\/p>\n<p style=\"padding-left: 30px;\"><em>\u201cThe first hints of a possible planet were spotted back in 2013, but the detection was not convincing. Since then we have worked hard to get further observations off the ground with help from ESO and others. The recent <\/em>Pale Red Dot<em> campaign has been about two years in the planning.\u201d<\/em><\/p>\n<p>The <em>Pale Red Dot<\/em> data, when combined with earlier observations made at ESO observatories and elsewhere, revealed the clear signal of a truly exciting result. At times Proxima Centauri is approaching Earth at about 5 kilometres per hour \u2014 normal human walking pace \u2014 and at times receding at the same speed. This regular pattern of changing radial velocities repeats with a period of 11.2 days. Careful analysis of the resulting tiny <a href=\"https:\/\/en.wikipedia.org\/wiki\/Doppler_effect\" target=\"_blank\">Doppler shifts<\/a> showed that they indicated the presence of a planet with a mass at least 1.3 times that of the Earth, orbiting about 7 million kilometres from Proxima Centauri \u2014 only 5% of the Earth-Sun distance <a href=\"#3\">[3]<\/a>.<\/p>\n<figure id=\"attachment_13082\" aria-describedby=\"caption-attachment-13082\" style=\"width: 390px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso0307b1.jpg\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"13082\" data-permalink=\"https:\/\/hobbyspace.com\/Blog\/?attachment_id=13082\" data-orig-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso0307b1.jpg\" data-orig-size=\"700,1077\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;ESO&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;The relative sizes of a number of objects, including the three (known) members of Alpha Centauri triple system and some other stars for which the angular sizes have also been measured with the Very Large Telescope Interferometer (VLTI) at the ESO Paranal Observatory. The Sun and planet Jupiter are also shown for comparison.&quot;,&quot;created_timestamp&quot;:&quot;1047686400&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;Relative Sizes of the Alpha Centauri Components and other Object&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Relative Sizes of the Alpha Centauri Components and other Object\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;The relative sizes of a number of objects, including the three (known) members of Alpha Centauri triple system and some other stars for which the angular sizes have also been measured with the Very Large Telescope Interferometer (VLTI) at the ESO Paranal Observatory. The Sun and planet Jupiter are also shown for comparison.&lt;\/p&gt;\n\" data-large-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso0307b1-666x1024.jpg\" class=\"wp-image-13082\" src=\"http:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso0307b1-666x1024.jpg\" alt=\"The relative sizes of a number of objects, including the three (known) members of Alpha Centauri triple system and some other stars for which the angular sizes have also been measured with the Very Large Telescope Interferometer (VLTI) at the ESO Paranal Observatory. The Sun and planet Jupiter are also shown for comparison.\" width=\"390\" height=\"600\" srcset=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso0307b1-666x1024.jpg 666w, https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso0307b1-195x300.jpg 195w, https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso0307b1.jpg 700w\" sizes=\"auto, (max-width: 390px) 100vw, 390px\" \/><\/a><figcaption id=\"caption-attachment-13082\" class=\"wp-caption-text\"><em>The relative sizes of a number of objects, including the three (known) members of Alpha Centauri triple system and some other stars for which the angular sizes have also been measured with the Very Large Telescope Interferometer (VLTI) at the ESO Paranal Observatory. The Sun and planet Jupiter are also shown for comparison.<\/em><\/figcaption><\/figure>\n<p>Guillem Anglada-Escud\u00e9 comments on the excitement of the last few months:<\/p>\n<p style=\"padding-left: 30px;\"><em>&#8220;I kept checking the consistency of the signal every single day during the 60 nights of the Pale Red Dot campaign. The first 10 were promising, the first 20 were consistent with expectations, and at 30 days the result was pretty much definitive, so we started drafting the paper!&#8221;<\/em><\/p>\n<p>Red dwarfs like Proxima Centauri are active stars and can vary in ways that would mimic the presence of a planet. To exclude this possibility the team also monitored the changing brightness of the star very carefully during the campaign using the ASH2 telescope at the <a href=\"http:\/\/www.spaceobs.com\/\" target=\"_blank\">San Pedro de Atacama Celestial Explorations Observatory<\/a> in Chile and the <a href=\"https:\/\/lcogt.net\/\" target=\"_blank\">Las Cumbres Observatory<\/a> telescope network. Radial velocity data taken when the star was flaring were excluded from the final analysis.<\/p>\n<figure id=\"attachment_13083\" aria-describedby=\"caption-attachment-13083\" style=\"width: 500px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629k1.jpg\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"13083\" data-permalink=\"https:\/\/hobbyspace.com\/Blog\/?attachment_id=13083\" data-orig-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629k1.jpg\" data-orig-size=\"700,525\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;ESO\/G. Coleman&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;An angular size comparison of how Proxima will appear in the sky seen from Proxima b, compared to how the Sun appears in our sky on Earth. Proxima is much smaller than the Sun, but Proxima b lies very close to its star.&quot;,&quot;created_timestamp&quot;:&quot;1472065200&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;Angular apparent size comparison&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Angular apparent size comparison\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;An angular size comparison of how Proxima will appear in the sky seen from Proxima b, compared to how the Sun appears in our sky on Earth. Proxima is much smaller than the Sun, but Proxima b lies very close to its star.&lt;\/p&gt;\n\" data-large-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629k1.jpg\" class=\"wp-image-13083\" src=\"http:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629k1.jpg\" alt=\"An angular size comparison of how Proxima will appear in the sky seen from Proxima b, compared to how the Sun appears in our sky on Earth. Proxima is much smaller than the Sun, but Proxima b lies very close to its star.\" width=\"500\" height=\"375\" srcset=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629k1.jpg 700w, https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/eso1629k1-300x225.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><figcaption id=\"caption-attachment-13083\" class=\"wp-caption-text\"><em>An angular size comparison of how Proxima will appear in the sky seen from Proxima b, compared to how the Sun appears in our sky on Earth. Proxima is much smaller than the Sun, but Proxima b lies very close to its star.<\/em><\/figcaption><\/figure>\n<p>Although Proxima b orbits much closer to its star than Mercury does to the Sun in the Solar System, the star itself is far fainter than the Sun. As a result Proxima b lies well within the <a href=\"https:\/\/en.wikipedia.org\/wiki\/Circumstellar_habitable_zone\" target=\"_blank\">habitable zone<\/a> around the star and has an estimated surface temperature that would allow the presence of liquid water. Despite the temperate orbit of Proxima b, the conditions on the surface may be strongly affected by the ultraviolet and X-ray flares from the star \u2014 far more intense than the Earth experiences from the Sun <a href=\"#4\">[4]<\/a>.<\/p>\n<figure id=\"attachment_13084\" aria-describedby=\"caption-attachment-13084\" style=\"width: 500px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/ann16002a1.jpg\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"13084\" data-permalink=\"https:\/\/hobbyspace.com\/Blog\/?attachment_id=13084\" data-orig-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/ann16002a1.jpg\" data-orig-size=\"700,467\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;ESO\/Pale Red Dot&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;Pale Red Dot was an international search for an Earth-like exoplanet around the closest star to us, Proxima Centauri. It used HARPS, attached to ESO\\u2019s 3.6-metre telescope at La Silla Observatory, as well as other telescopes around the world.  It was one of the few outreach campaigns allowing the general public to witness the scientific process of data acquisition in modern observatories. The public could see how teams of astronomers with different specialities work together to collect, analyse and interpret data, which ultimately confirmed the presence of an Earth-like planet orbiting our nearest neighbour. The outreach campaign consisted of blog posts and social media updates on the Pale Red Dot Twitter account and using the hashtag #PaleRedDot. For more information visit the Pale Red Dot website: http:\/\/www.palereddot.org&quot;,&quot;created_timestamp&quot;:&quot;1452866400&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;The Pale Red Dot Campaign&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"The Pale Red Dot Campaign\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Pale Red Dot was an international search for an Earth-like exoplanet around the closest star to us, Proxima Centauri. It used HARPS, attached to ESO\u2019s 3.6-metre telescope at La Silla Observatory, as well as other telescopes around the world.  It was one of the few outreach campaigns allowing the general public to witness the scientific process of data acquisition in modern observatories. The public could see how teams of astronomers with different specialities work together to collect, analyse and interpret data, which ultimately confirmed the presence of an Earth-like planet orbiting our nearest neighbour. The outreach campaign consisted of blog posts and social media updates on the Pale Red Dot Twitter account and using the hashtag #PaleRedDot. For more information visit the Pale Red Dot website: http:\/\/www.palereddot.org&lt;\/p&gt;\n\" data-large-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/ann16002a1.jpg\" class=\"wp-image-13084\" src=\"http:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/ann16002a1.jpg\" alt=\"Pale Red Dot was an international search for an Earth-like exoplanet around the closest star to us, Proxima Centauri. It used HARPS, attached to ESO\u2019s 3.6-metre telescope at La Silla Observatory, as well as other telescopes around the world. It was one of the few outreach campaigns allowing the general public to witness the scientific process of data acquisition in modern observatories. The public could see how teams of astronomers with different specialities work together to collect, analyse and interpret data, which ultimately confirmed the presence of an Earth-like planet orbiting our nearest neighbour. The outreach campaign consisted of blog posts and social media updates on the Pale Red Dot Twitter account and using the hashtag #PaleRedDot. For more information visit the Pale Red Dot website: http:\/\/www.palereddot.org\" width=\"500\" height=\"334\" srcset=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/ann16002a1.jpg 700w, https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/08\/ann16002a1-300x200.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><figcaption id=\"caption-attachment-13084\" class=\"wp-caption-text\"><em>Pale Red Dot was an international search for an Earth-like exoplanet around the closest star to us, Proxima Centauri. It used HARPS, attached to ESO\u2019s 3.6-metre telescope at La Silla Observatory, as well as other telescopes around the world. It was one of the few outreach campaigns allowing the general public to witness the scientific process of data acquisition in modern observatories. The public could see how teams of astronomers with different specialities work together to collect, analyse and interpret data, which ultimately confirmed the presence of an Earth-like planet orbiting our nearest neighbour. The outreach campaign consisted of blog posts and social media updates on the Pale Red Dot Twitter account and using the hashtag #PaleRedDot. For more information visit the Pale Red Dot website: <a href=\"http:\/\/www.palereddot.org\" target=\"_blank\">http:\/\/www.palereddot.org<\/a><\/em><\/figcaption><\/figure>\n<p>Two separate <a href=\"http:\/\/www.proximacentauri.info\/\" target=\"_blank\">papers <\/a>discuss the habitability of Proxima b and its climate. They find that\u00a0the existence of liquid water on the planet today cannot be ruled out and, in such case, it\u00a0may be present over the surface of the planet only in the sunniest regions, either in an area in the hemisphere of the planet facing the star (<a href=\"https:\/\/www.eso.org\/public\/videos\/eso1629g\/\" target=\"_blank\">synchronous rotation<\/a>) or in a tropical belt (<a href=\"https:\/\/www.eso.org\/public\/videos\/eso1629h\/\" target=\"_blank\">3:2 resonance rotation<\/a>). Proxima b&#8217;s rotation, the strong radiation from its star and the formation history of the planet makes its climate quite different from that of the Earth, and it is unlikely that Proxima b has seasons.<\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"1600\" height=\"900\" src=\"https:\/\/www.youtube.com\/embed\/Wps1uyJ1lNk?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p style=\"padding-left: 30px;\"><em>This video takes the viewer from Earth to the closest star, Proxima Centauri. Here we can see the planet Proxima b, which orbits its red dwarf star every 11.2 days. This planet orbits within the habitable zone, shown in green, which means that liquid water could exist on its surface.\u00a0Credit:\u00a0PHL @ UPR Arecibo, ESO. Music by Lyford Rome<\/em><\/p>\n<p>This discovery will be the beginning of extensive further observations, both with current instruments <a href=\"#5\">[5]<\/a> and with the next generation of giant telescopes such as the European Extremely Large Telescope (<a href=\"http:\/\/www.eso.org\/e-elt\/\" target=\"_blank\">E-ELT<\/a>). Proxima b will be a prime target for the hunt for evidence of life elsewhere in the Universe. Indeed, the Alpha Centauri system is also the target of humankind\u2019s first attempt to travel to another star system, the <a href=\"https:\/\/breakthroughinitiatives.org\/Initiative\/3\" target=\"_blank\">StarShot<\/a> project.<\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"1600\" height=\"900\" src=\"https:\/\/www.youtube.com\/embed\/imPGSyhuY9U?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p style=\"padding-left: 30px;\"><em>A numerical simulation of possible surface temperatures on Proxima b performed with the Laboratoire de M\u00e9t\u00e9orologie Dynamique&#8217;s Planetary Global Climate Model. Here it is hypothesised that the planet possesses an Earth-like atmosphere and that it is covered by an ocean (the dashed line is the frontier between the liquid and icy oceanic surface). Two models exist for the planet&#8217;s rotation. Here the planet is in synchronous rotation (like the Moon around the Earth), and is seen as a distant observer would do during one full orbit. Another model is that it is trapped in a so-called <a href=\"https:\/\/www.eso.org\/public\/videos\/eso1629h\/\">3:2 resonance<\/a> (a natural frequency for the orbit).<\/em><\/p>\n<p style=\"padding-left: 30px;\"><em>Two additional papers about Proxima b&#8217;s possibility for habitability are described at <a href=\"http:\/\/www.proximacentauri.info\/\">proximacentauri.info<\/a>.\u00a0Credit:\u00a0M. Turbet\/I. Ribas\/ESO<\/em><\/p>\n<p>Guillem Anglada-Escud\u00e9 concludes:<\/p>\n<p style=\"padding-left: 30px;\"><em>&#8220;Many exoplanets have been found and many more will be found, but searching for the closest potential Earth-analogue and succeeding has been the experience of a lifetime for all of us. Many people\u2019s stories and efforts have converged on this discovery. The result is also a tribute to all of them. The search for life on Proxima b comes next&#8230;&#8221;<\/em><\/p>\n<p><strong>Notes<\/strong><\/p>\n<p><a class=\"anchor\" name=\"1\"><\/a>[1] Besides data from the recent <em>Pale Red Dot<\/em> campaign, the paper incorporates contributions from scientists who have been observing Proxima Centauri for many years. These include members of the original UVES\/ESO M-dwarf programme (Martin K\u00fcrster and Michael Endl), and exoplanet search pioneers such as R. Paul Butler. Public observations from the HARPS\/Geneva team obtained over many years were also included.<\/p>\n<p><a class=\"anchor\" name=\"2\"><\/a>[2] The name <em>Pale Red Dot<\/em> reflects <a href=\"https:\/\/en.wikipedia.org\/wiki\/Carl_Sagan\" target=\"_blank\">Carl Sagan<\/a>\u2019s famous reference to the Earth as a <a href=\"https:\/\/en.wikipedia.org\/wiki\/Pale_Blue_Dot\" target=\"_blank\">pale blue dot<\/a>. As Proxima Centauri is a red dwarf star it will bathe its orbiting planet in a pale red glow.<\/p>\n<p><a class=\"anchor\" name=\"3\"><\/a>[3] The detection reported today has been technically possible for the last 10 years. In fact, signals with smaller amplitudes have been detected previously. However, stars are not smooth balls of gas and Proxima Centauri is an active star. The robust detection of Proxima b has only been possible after reaching a detailed understanding of how the star changes on timescales from minutes to a decade, and monitoring its brightness with photometric telescopes.<\/p>\n<p><a class=\"anchor\" name=\"4\"><\/a>[4] The actual suitability of this kind of planet to support water and Earth-like life is a matter of intense but mostly theoretical debate. Major concerns that count against the presence of life are related to the closeness of the star. For example gravitational forces probably lock the same side of the planet in perpetual daylight, while the other side is in perpetual night. The planet&#8217;s atmosphere might also slowly be evaporating or have more complex chemistry than Earth\u2019s due to stronger ultraviolet and X-ray radiation, especially during the first billion years of the star\u2019s life. However, none of the arguments has been proven conclusively and they are unlikely to be settled without direct observational evidence and characterisation of the planet\u2019s atmosphere. Similar factors apply to the <a href=\"http:\/\/www.eso.org\/public\/news\/eso1615\/\" target=\"_blank\">planets recently found around TRAPPIST-1<\/a>.<\/p>\n<p><a class=\"anchor\" name=\"5\"><\/a>[5] Some methods to study a planet\u2019s atmosphere depend on it passing in front of its star and the starlight passing through the atmosphere on its way to Earth. Currently there is no evidence that Proxima b transits across the disc of its parent star, and the chances of this happening seem small, but further observations to check this possibility are in progress.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This ESO (European Southern Observatory) report\u00a0has had\u00a0probably the\u00a0most violated embargo of any ESO news. Great to see the full report finally made available to everyone: Planet Found in Habitable Zone Around Nearest Star Pale Red Dot campaign reveals Earth-mass world in orbit around Proxima Centauri Astronomers using ESO telescopes and other facilities have found clear &hellip; <a href=\"https:\/\/hobbyspace.com\/Blog\/?p=13077\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">ESO: Earth scale planet found in habitable zone of our nearest star, Proxima Centauri<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[12,46],"tags":[],"class_list":["post-13077","post","type-post","status-publish","format-standard","hentry","category-astronomy","category-exoplanets"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p34aWK-3oV","jetpack-related-posts":[{"id":24864,"url":"https:\/\/hobbyspace.com\/Blog\/?p=24864","url_meta":{"origin":13077,"position":0},"title":"ESO: Third planet found at Proxima Centauri, the star nearest our Sun","author":"TopSpacer","date":"February 10, 2022","format":false,"excerpt":"A new report from the European Southern Observatory (ESO): New planet detected around star closest to the Sun A team of astronomers using the European Southern Observatory\u2019s Very Large Telescope (ESO\u2019s VLT) in Chile have found evidence of another planet orbiting Proxima Centauri, the closest star to our Solar System.\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/hobbyspace.com\/Blog\/?cat=12"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2022\/02\/eso1629f1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2022\/02\/eso1629f1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2022\/02\/eso1629f1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2022\/02\/eso1629f1.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":13727,"url":"https:\/\/hobbyspace.com\/Blog\/?p=13727","url_meta":{"origin":13077,"position":1},"title":"ESO: Very Large Telescope to search for planets in Alpha Centauri system","author":"TopSpacer","date":"January 9, 2017","format":false,"excerpt":"Here is a new article from\u00a0ESO\u00a0(European Southern Observatory): VLT to Search for Planets in Alpha Centauri System ESO has signed an agreement with the Breakthrough Initiatives to adapt the Very Large Telescope instrumentation in Chile to conduct a search for planets in the nearby star system Alpha Centauri. Such planets\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/hobbyspace.com\/Blog\/?cat=12"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2017\/01\/eso1702a1.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":13175,"url":"https:\/\/hobbyspace.com\/Blog\/?p=13175","url_meta":{"origin":13077,"position":2},"title":"Video: Discussion of the earth-scale planet found orbiting Proxima Centauri","author":"TopSpacer","date":"September 9, 2016","format":false,"excerpt":"The discovery of an\u00a0Earth scale planet in the habitable zone of our nearest star, Proxima Centauri\u00a0was recent big news. Here is a video of a\u00a0SETI Institute panel discussion of the finding:\u00a0A Terrestrial Exoplanet at Proxima Centauri | SETI Institute. The video starts with Guillem Anglada, who led the group that\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/hobbyspace.com\/Blog\/?cat=12"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/_6eCF2FVcfo\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":14083,"url":"https:\/\/hobbyspace.com\/Blog\/?p=14083","url_meta":{"origin":13077,"position":3},"title":"Video: &#8220;A Journey to Alpha Centauri&#8221; &#8211; SETI institute seminar by Christian Marois","author":"TopSpacer","date":"March 19, 2017","format":false,"excerpt":"Dr.\u00a0Christian Marois of the University of Victoria gave\u00a0a talk about the observation of an earth-sized planet orbiting Proxima Centauri, the nearest known star to earth:\u00a0A Journey to Alpha Centauri | SETI Institute The Alpha Centauri star system is ideal to search for habitable planets by various observing techniques due to\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/hobbyspace.com\/Blog\/?cat=12"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/b5rInKFFdUs\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":15134,"url":"https:\/\/hobbyspace.com\/Blog\/?p=15134","url_meta":{"origin":13077,"position":4},"title":"ESO: Dust belt observed around Proxima Centauri, our nearest neighbor star","author":"TopSpacer","date":"November 3, 2017","format":false,"excerpt":"A new\u00a0ESO\u00a0(European Southern Observatory) report: ALMA Discovers Cold Dust Around Nearest Star ALMA Observatory in Chile has detected dust around the closest star to the Solar System, Proxima Centauri. These new observations reveal the glow coming from cold dust in a region between one to four times as far from\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/hobbyspace.com\/Blog\/?cat=12"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2017\/11\/eso1735a1.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":13329,"url":"https:\/\/hobbyspace.com\/Blog\/?p=13329","url_meta":{"origin":13077,"position":5},"title":"Project Blue: Crowd-funded space telescope aims to image exoplanet","author":"TopSpacer","date":"October 11, 2016","format":false,"excerpt":"Project Blue\u00a0at\u00a0the\u00a0BoldlyGo Institute\u00a0 is a new science initiative to capture the first photograph of a potential Earth-like planet orbiting another Sun-like star. The mission aims to launch a lightweight space telescope to directly image exoplanets around Earth\u2019s nearest star system, Alpha Centauri A and B. With a budget the fraction\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/hobbyspace.com\/Blog\/?cat=12"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/ClxA85v5QI8\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/13077","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=13077"}],"version-history":[{"count":3,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/13077\/revisions"}],"predecessor-version":[{"id":13088,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/13077\/revisions\/13088"}],"wp:attachment":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=13077"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=13077"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=13077"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}