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http://www.symmetrymagazine.org/46569: What is dark energy?
Symmetry

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7 Jul 2015, 15:30 UTC
http://www.eso.org/public/announcements/ann15054/: Catch a Star 2015 Contest Winners Announced
ESO Announcements

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7 Jul 2015, 14:00 UTC
http://www.americaspace.com/?p=84077: The Science of Pluto: The Sails of Charon (Part 2)
AmericaSpace

Direct link The Science of Pluto: The Sails of Charon (Part 2)

7 Jul 2015, 01:25 UTC
tag:blogger.com,1999:blog-1014682403395027648.post-6834310806437768771: An Intensely Irradiated Hot-Jupiter in a Polar Orbit
Beyond Earthly Skies

Direct link An Intensely Irradiated Hot-Jupiter in a Polar Orbit

6 Jul 2015, 23:00 UTC <span style="font-family: inherit;">Delrez et al. (2015) present the discovery of WASP-121b, a hot-Jupiter in a short-period polar orbit around its host star. The orbit of WASP-121b causes it to transit its host star every 1.27 days. The host star of WASP-121b is an F-type main sequence star with 1.35 times the mass and 1.46 times the radius of the Sun. It shines with 3.3 times the Sun’s luminosity. Spectroscopic and photometric observations show that WASP-121b has 1.18 times the mass and 1.87 times the radius of Jupiter. This gives WASP-121b a mean density of only 1/5th the density of Jupiter.</span><br /><div style="text-align: center;"><span style="font-family: inherit;"><br /></span></div><div class="separator" style="clear: both; text-align: center;"><a href="http://2.bp.blogspot.com/--KLnKf1wglU/VXbZn6P8m9I/AAAAAAAAHjg/ldkrNdV_hzY/s1600/Post%2B-%2BJuly%2B2015%2B%25287%2529%2B-%2B1.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="640" src="http://2.bp.blogspot.com/--KLnKf1wglU/VXbZn6P8m9I/AAAAAAAAHjg/ldkrNdV_hzY/s640/Post%2B-%2BJuly%2B2015%2B%25287%2529%2B-%2B1.jpg" width="640" /></a></div><div style="text-align: center;"><span style="font-family: inherit;">Figure 1: Artist’s impression of an exoplanet obscuring its host star. Image credit: Pauline Moss.</span></div><span style="font-family: inherit;"><br /></span><span style="font-family: inherit;">The large radius of WASP-121b indicates that it is significantly inflated. WASP-121b orbits so close to its host star, it is just ~1.15 times the minimum distance from its host star where it will start to become tidally disrupted. Due to the proximity to its host star, WASP-121b receives an extreme amount of irradiation which heats the ...
http://www.rocketstem.org/?p=6143: These robots are out of this world
RocketSTEM

Direct link These robots are out of this world

6 Jul 2015, 20:52 UTC

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