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http://feeds.feedburner.com/8EC7B210-0771-4387-8458-854AA647EAC8: Air Force X-37B space plane lifts off on 4th flight, with LightSail in tow
collectSPACE.com: Space History News

Direct link Air Force X-37B space plane lifts off on 4th flight, with LightSail in tow

20 May 2015, 15:15 UTC
http://www.eso.org/public/announcements/ann15036/: Open House at ESO for the Long Night of Science
ESO Announcements

Direct link Open House at ESO for the Long Night of Science

20 May 2015, 14:30 UTC
http://www.symmetrymagazine.org/44800: Small teams, big dreams
Symmetry

Direct link Small teams, big dreams

20 May 2015, 13:00 UTC
https://medium.com/p/c03723a9c7f8: What’s causing Ceres’ white spots?
Starts With a Bang!

Direct link What’s causing Ceres’ white spots?

20 May 2015, 00:46 UTC
tag:blogger.com,1999:blog-1014682403395027648.post-6534457166233574156: Large Water-Rich Moons around Super-Jovian Planets
Beyond Earthly Skies

Direct link Large Water-Rich Moons around Super-Jovian Planets

19 May 2015, 22:00 UTC <span style="font-family: inherit;">Large moons similar in size to the planet Mars (0.53 Earth radii) or Jupiter’s moon Ganymede (0.41 Earth radii) should be detectable in the available dataset of photometric measurements by NASA’s Kepler space telescope. Super-Jovian planets (i.e. planets more massive than Jupiter) appear to be abundant at ~1 AU around Sun-like stars (i.e. 1 AU is the distance of Earth from the Sun). At these distances, temperatures are just right for large moons around these planets to potentially support life. As a result, it is worth considering whether super-Jovian planets at ~1 AU around Sun-like stars can host large moons that are habitable.</span><br /><span style="font-family: inherit;"><br /></span><div class="separator" style="clear: both; text-align: center;"><a href="http://2.bp.blogspot.com/--431f9taH3c/VVavWy7LE2I/AAAAAAAAHbg/jz2MAjMP53g/s1600/Post%2B-%2BMay%2B2015%2B(20)%2B-%2B1.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="371" src="http://2.bp.blogspot.com/--431f9taH3c/VVavWy7LE2I/AAAAAAAAHbg/jz2MAjMP53g/s640/Post%2B-%2BMay%2B2015%2B(20)%2B-%2B1.jpg" width="640" /></a></div><div style="text-align: center;"><span style="font-family: inherit;">Figure 1: Artist’s impression of a gas giant planet like Jupiter with a system of moons orbiting it.</span></div><span style="font-family: inherit;"><br /></span><span style="font-family: inherit;">A study by Heller &amp; Pudritz (2015) predicts that water-rich Mars-mass moons can form around super-Jovian planets that lie beyond ~5 AU around Sun-like stars. Jupiter-mass planets that form closer than ~4.5 AU to Sun-like stars are unlikely to form water-rich moons because their accretion disks are less massive and depleted ...

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