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Spacewalking Astronaut John Grunsfeld

Uranus rings and moons

In 2010, NASA passed on this logo redesign that was truly out of this world. In 2010, a design studio proposed a fresh new logo to NASA. NASA passed, and we still wonder why.

How massive can a star be? Estimates made from distance, brightness and standard solar models had given one star in the open cluster Pismis 24 over 200 times the mass of our Sun, making it a record holder. This star is the brightest object located just to the right of the gas front in the above image. Close inspection of images taken recently with the Hubble Space Telescope, however, have shown that Pismis 24-1 derives its brilliant luminosity not from a single star but from three at least.

Ross Berens poster from Under the Milky Way poster series

Earth as seen from Voyager 1

Inside an iceberg from the view of an ice cave—Antarctica