{"id":20170,"date":"2019-11-06T13:30:28","date_gmt":"2019-11-06T18:30:28","guid":{"rendered":"http:\/\/hobbyspace.com\/Blog\/?p=20170"},"modified":"2019-11-06T12:04:29","modified_gmt":"2019-11-06T17:04:29","slug":"space-sciences-roundup-nov-6-2019","status":"publish","type":"post","link":"https:\/\/hobbyspace.com\/Blog\/?p=20170","title":{"rendered":"Space sciences roundup – Nov.6.2019"},"content":{"rendered":"

A sampling of recent articles, videos, and images from space-related science news items (find previous roundups here<\/a>):<\/p>\n

Exoplanets<\/strong><\/p>\n

** TESS (Transiting Exoplanet Survey Satellite)<\/strong><\/a> has found 29 exoplanets<\/strong> so far in a survey of southern sky: NASA\u2019s TESS Presents Panorama of Southern Sky | NASA<\/a><\/p>\n

… Constructed from 208 TESS images taken during the mission\u2019s first year of science operations, completed on July 18<\/a>, the southern panorama reveals both the beauty of the cosmic landscape and the reach of TESS\u2019s cameras.<\/em><\/p>\n

\u201cAnalysis of TESS data focuses on individual stars and planets one at a time, but I wanted to step back and highlight everything at once, really emphasizing the spectacular view TESS gives us of the entire sky,\u201d said Ethan Kruse, a NASA Postdoctoral Program<\/a> Fellow who assembled the mosaic at NASA\u2019s Goddard Space Flight Center in Greenbelt, Maryland.<\/em><\/p>\n

Within this scene, TESS has discovered 29 exoplanets<\/a>, or worlds beyond our solar system, and more than 1,000 candidate planets astronomers are now investigating.<\/em><\/p>\n

TESS divided the southern sky into 13 sectors and imaged each one of them for nearly a month using four cameras, which carry a total of 16 charge-coupled devices (CCDs). Remarkably, the TESS cameras capture a full sector of the sky every 30 minutes as part of its search for exoplanet transits. Transits occur when a planet passes in front of its host star from our perspective, briefly and regularly dimming its light. During the satellite\u2019s first year of operations, each of its CCDs captured 15,347 30-minute science images. These images are just a part of more than 20 terabytes of southern sky data TESS has returned, comparable to streaming nearly 6,000 high-definition movies.<\/em><\/p>\n