{"id":16366,"date":"2018-07-09T09:00:21","date_gmt":"2018-07-09T13:00:21","guid":{"rendered":"http:\/\/hobbyspace.com\/Blog\/?p=16366"},"modified":"2018-07-10T01:02:06","modified_gmt":"2018-07-10T05:02:06","slug":"audio-hear-the-radio-emissions-of-saturn-and-its-moon-enceladus","status":"publish","type":"post","link":"https:\/\/hobbyspace.com\/Blog\/?p=16366","title":{"rendered":"Audio: Hear the radio emissions of Saturn and its moon Enceladus"},"content":{"rendered":"<p>Check out the exotic sounds of Saturn as derived from the radio transmissions generated by waves in the plasma (ionized particles) between Saturn and the rings and the satellite Enceladus:<\/p>\n<p style=\"text-align: center;\"><strong><a href=\"https:\/\/www.nasa.gov\/feature\/jpl\/listen-sound-of-electromagnetic-energy-moving-between-saturn-enceladus\" target=\"_blank\" rel=\"noopener\">Listen: Electromagnetic Energy of Saturn, Enceladus<\/a><\/strong><\/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\/hWHLCHv4PiI?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>New research from NASA\u2019s Cassini spacecraft\u2019s up-close Grand Finale orbits shows a surprisingly powerful and dynamic interaction of plasma waves moving from Saturn to its rings and its moon Enceladus. The observations show for the first time that the waves travel on magnetic field lines connecting Saturn directly to Enceladus. The field lines are like an electrical circuit between the two bodies, with energy flowing back and forth.<\/p>\n<p>Researchers converted the recording of plasma waves into a \u201cwhooshing\u201d audio file that we can hear &#8212; in the same way a radio translates electromagnetic waves into music. In other words, Cassini detected electromagnetic waves in the audio frequency range &#8212; and on the ground, we can amplify and play those signals through a speaker. The recording time was compressed from 16 minutes to 28.5 seconds.<\/p>\n<p>Much like air or water, plasma (the fourth state of matter) generates waves to carry energy. The\u00a0<a href=\"https:\/\/saturn.jpl.nasa.gov\/radio-and-plasma-wave-science\/\" target=\"_blank\" rel=\"noopener\">Radio Plasma Wave Science (RPWS)<\/a>\u00a0instrument on board NASA\u2019s Cassini spacecraft recorded intense plasma waves during one of its closest encounters to Saturn.<\/p>\n<p style=\"padding-left: 30px;\"><em>\u201cEnceladus is this little generator going around Saturn, and we know it is a continuous source of energy,\u201d said Ali Sulaiman, planetary scientist at the University of Iowa, Iowa City, and a member of the RPWS team. \u201cNow we find that Saturn responds by launching signals in the form of plasma waves, through the circuit of magnetic field lines connecting it to Enceladus hundreds of thousands of miles away.\u201d<\/em><\/p>\n<p>Sulaiman is lead author of a pair of papers describing the findings, published recently in Geophysical Research Letters.<\/p>\n<p>The interaction of Saturn and Enceladus is different from the relationship of Earth and its Moon.\u00a0<a href=\"https:\/\/saturn.jpl.nasa.gov\/science\/enceladus\/\" target=\"_blank\" rel=\"noopener\">Enceladus<\/a>\u00a0is immersed in Saturn\u2019s magnetic field and is geologically active, emitting plumes of water vapor that become ionized and fill the environment around Saturn. Our own Moon does not interact in the same way with Earth. Similar interactions take place between Saturn and its rings, as they are also very dynamic.<\/p>\n<p>The recording was captured Sept. 2, 2017, two weeks before Cassini was deliberately plunged into the atmosphere of Saturn. The recording was converted by the RPWS team at the University of Iowa, led by physicist and RPWS Principal Investigator Bill Kurth.<\/p>\n<p>The GRL research is available on the American Geophysical Union\u2019s website:<\/p>\n<ul>\n<li><a href=\"https:\/\/agupubs.onlinelibrary.wiley.com\/doi\/abs\/10.1029\/2018GL078130\" target=\"_blank\" rel=\"noopener\">https:\/\/agupubs.onlinelibrary.wiley.com\/doi\/abs\/10.1029\/2018GL078130<\/a><\/li>\n<li><a href=\"https:\/\/agupubs.onlinelibrary.wiley.com\/doi\/abs\/10.1029\/2018GL077875?campaign=wolacceptedarticle\" target=\"_blank\" rel=\"noopener\">https:\/\/agupubs.onlinelibrary.wiley.com\/doi\/abs\/10.1029\/2018GL077875<\/a><\/li>\n<\/ul>\n<p>The Cassini-Huygens mission is a cooperative project of NASA, ESA (European Space Agency) and the Italian Space Agency. NASA&#8217;s Jet Propulsion Laboratory, a division of Caltech in Pasadena, manages the mission for NASA&#8217;s Science Mission Directorate, Washington. JPL designed, developed and assembled the Cassini orbiter. The RPWS instrument was built by the University of Iowa, working with team members from the U.S. and several European countries.<\/p>\n<div class=\"feature-credits\">\n<p>Gretchen McCartney<br \/>\nJet Propulsion Laboratory, Pasadena, California<br \/>\n818-393-6215<br \/>\n<a href=\"mailto:Gretchen.P.McCartney@jpl.nasa.gov\">Gretchen.P.McCartney@jpl.nasa.gov<\/a><\/p>\n<p>Dwayne Brown \/ JoAnna Wendel<br \/>\nNASA Headquarters, Washington<br \/>\n202-358-1726 \/ 202-358-1003<br \/>\n<a href=\"mailto:dwayne.c.brown@nasa.gov\">dwayne.c.brown@nasa.gov<\/a>\u00a0\/\u00a0<a href=\"mailto:joanna.r.wendel@nasa.gov\">joanna.r.wendel@nasa.gov<\/a><\/p>\n<p style=\"text-align: center;\">=====<\/p>\n<p style=\"text-align: center;\"><iframe loading=\"lazy\" style=\"border: none;\" src=\"\/\/rcm-na.amazon-adsystem.com\/e\/cm?o=1&amp;p=12&amp;l=ur1&amp;category=primemusic&amp;banner=0EBKCF0TBP7RX7TPW482&amp;f=ifr&amp;linkID=f2f225bb85f1f80a05cfe9bea4e7785f&amp;t=hobbyspace&amp;tracking_id=hobbyspace\" width=\"300\" height=\"250\" frameborder=\"0\" marginwidth=\"0\" scrolling=\"no\" data-mce-fragment=\"1\"><\/iframe><\/p>\n<p>&nbsp;<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Check out the exotic sounds of Saturn as derived from the radio transmissions generated by waves in the plasma (ionized particles) between Saturn and the rings and the satellite Enceladus: Listen: Electromagnetic Energy of Saturn, Enceladus New research from NASA\u2019s Cassini spacecraft\u2019s up-close Grand Finale orbits shows a surprisingly powerful and dynamic interaction of plasma &hellip; <a href=\"https:\/\/hobbyspace.com\/Blog\/?p=16366\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Audio: Hear the radio emissions of Saturn and its moon Enceladus<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_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":""},"categories":[87,32,13],"tags":[],"class_list":["post-16366","post","type-post","status-publish","format-standard","hentry","category-et-al","category-space-radio","category-space-science"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p34aWK-4fY","jetpack-related-posts":[{"id":13919,"url":"https:\/\/hobbyspace.com\/Blog\/?p=13919","url_meta":{"origin":16366,"position":0},"title":"Cassini: Magnetic anomaly leads to an ocean world circling Saturn","author":"TopSpacer","date":"February 16, 2017","format":false,"excerpt":"Saturn's little moon Enceladus has turned out to be one of the most interesting objects in the solar system: Cassini: Mission to Saturn: An Ice World...With an Ocean? How a puzzling sensor reading transformed NASA\u2019s Cassini Saturn mission and created a new target in the search for habitable worlds beyond\u2026","rel":"","context":"In &quot;Europa, Titan, &amp; other deep space sites&quot;","block_context":{"text":"Europa, Titan, &amp; other deep space sites","link":"https:\/\/hobbyspace.com\/Blog\/?cat=98"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2017\/02\/SaturnMagneticFieldAtEnceladus.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":14893,"url":"https:\/\/hobbyspace.com\/Blog\/?p=14893","url_meta":{"origin":16366,"position":1},"title":"Cassini nears journey&#8217;s end + The plume of Enceladous + The rings in hi-res","author":"TopSpacer","date":"September 9, 2017","format":false,"excerpt":"The\u00a0Cassini\u00a0mission to Saturn will end on September 15th when the spacecraft's orbit will take it into the gas giant's atmosphere. This video shows some of the spectacular imagery of the Saturn system sent back by the probe since it went into orbit there in 2004. https:\/\/youtu.be\/gPdgsPTNhac ** Here is a\u2026","rel":"","context":"In &quot;Gas giants Saturn, Jupiter, et al&quot;","block_context":{"text":"Gas giants Saturn, Jupiter, et al","link":"https:\/\/hobbyspace.com\/Blog\/?cat=87"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2017\/09\/EnceladusPlume-PIA21887_400x337.gif?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":7197,"url":"https:\/\/hobbyspace.com\/Blog\/?p=7197","url_meta":{"origin":16366,"position":2},"title":"Saturn moon Enceladus holds a sea beneath its icy crust","author":"TopSpacer","date":"April 3, 2014","format":false,"excerpt":"The ESA\/NASA\u00a0Cassini Mission\u00a0investigating the Saturn system has detected a large body of liquid water below a thick crust of ice on the moon Enceladus: Icy moon Enceladus has underground sea Saturn\u2019s icy moon Enceladus has an underground sea of liquid water, according to the international Cassini spacecraft. Inside Enceladus Understanding\u2026","rel":"","context":"In &quot;Gas giants Saturn, Jupiter, et al&quot;","block_context":{"text":"Gas giants Saturn, Jupiter, et al","link":"https:\/\/hobbyspace.com\/Blog\/?cat=87"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2014\/04\/inside_enceladus\/14362029-1-eng-GB\/Inside_Enceladus_large.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":11667,"url":"https:\/\/hobbyspace.com\/Blog\/?p=11667","url_meta":{"origin":16366,"position":3},"title":"Cassini survives dive through the Enceladus plume","author":"TopSpacer","date":"October 29, 2015","format":false,"excerpt":"On Thursday, October 28th, the\u00a0Cassini\u00a0spacecraft passed safely through the misty icy plume\u00a0that is emitted from the Saturn moon\u00a0Enceladus. \u00a0The goal was to obtain better measurements of the\u00a0chemistry\u00a0of the plume: Deepest-Ever Dive Through Enceladus Plume Completed -\u00a0NASA Seven Key Facts About Cassini's Oct. 28 'Plume Dive' A Tale of Two Hemispheres\u2026","rel":"","context":"In &quot;Europa, Titan, &amp; other deep space sites&quot;","block_context":{"text":"Europa, Titan, &amp; other deep space sites","link":"https:\/\/hobbyspace.com\/Blog\/?cat=98"},"img":{"alt_text":"PIA18340-br500[1]","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2015\/10\/PIA18340-br5001-290x300.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":10106,"url":"https:\/\/hobbyspace.com\/Blog\/?p=10106","url_meta":{"origin":16366,"position":4},"title":"Where are the stars in in-space made images?","author":"TopSpacer","date":"March 11, 2015","format":false,"excerpt":"Here's an excellent mini-tutorial by Bill Dunford on why one seldom sees stars in the dark sky background of images of planets, moons, asteroids, etc. made by scientific probes:\u00a0A Sky Full of Stars\u00a0-The Planetary Society He includes lots of examples such as this counter one: \u00a0Enceladus among stars \"Extremely unusual\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/hobbyspace.com\/Blog\/?cat=12"},"img":{"alt_text":"20130826_PIA10526_f840[1]","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2015\/03\/20130826_PIA10526_f8401.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":15242,"url":"https:\/\/hobbyspace.com\/Blog\/?p=15242","url_meta":{"origin":16366,"position":5},"title":"Cassini&#8217;s farewell mosaic of Saturn","author":"TopSpacer","date":"November 27, 2017","format":false,"excerpt":"The Cassini probe was sent to its doom in the Saturn atmosphere back in September but images and data will be arriving from its mission to the ringed planet for years to come. Here is a recent NASA JPL posting about a wonderful view of Saturn created form Cassini images:\u2026","rel":"","context":"In &quot;Gas giants Saturn, Jupiter, et al&quot;","block_context":{"text":"Gas giants Saturn, Jupiter, et al","link":"https:\/\/hobbyspace.com\/Blog\/?cat=87"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2017\/11\/PIA17218-161-1024x576.jpg?resize=350%2C200","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/16366","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=16366"}],"version-history":[{"count":1,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/16366\/revisions"}],"predecessor-version":[{"id":16367,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/16366\/revisions\/16367"}],"wp:attachment":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=16366"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=16366"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=16366"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}