Hubble Finds An Einstein Ring : These Graceful Arcs Are A Cosmic Phenomenon Known As An Einstein Ring

some of my favourite absolutely SICK facts about the trappist-1 exoplanets: - theyre all very close to one another and to their star, so the length of a year on them varies from 1 to 20 DAYS - since they’re so close, the star appears a lot bigger than our sun from earth, and from one planet you could easily see the rest, some would even appear bigger than the moon from earth. you could literally see the surface of another planet with the naked eye!!! - they’re probably tidally locked to their star like our moon is locked to earth, meaning only one side of a planet ever faces the star, and on the other side it’s always night. the sun never sets or rises on any of the planets - the star is red, so the sunlight is red/orange, meaning if, for example, plants were to grow there, they could be black and that’s just what we know now, imagine how much cool stuff we have yet to discover about the trappist-1 system

A Blue Bridge of Stars between Cluster Galaxies designated SDSS J1531+3414

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Remains of supernova explosion Cassiopeia A most recent supernova in Milky Way

Remember kids: Pluto is not a planet, WAS never a planet, and any acknowledgement of Pluto as a planet was an error of assumption

Details of the Omega Nebula image credit: European Southern Observatory

Michael Benson

1. Mimas Above Saturn’s Rings and Shadows, Cassini, November, 7, 2004

2. Mimas Transits Saturn’s Ring Shadows, Cassini, January 18, 2005

For the first time, NASA’s Curiosity rover has captured a color image of a sunset on Mars.  (NASA via Smithsonian Magazine)

Sunset from the International Space Station, taken by Scott Kelly

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