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Sand dunes on planet Mars: Best images
We knew there was wind on Mars. We knew there was sand. Now we know - we can see - that sand dunes on planet Mars are driven by strong winds.
November 20, 2011
4 astronauts win Congressional Gold Medals
Four astronauts win Congressional Gold Medals and thereby go down in history: Buzz Aldrin, Neil Armstrong, Michael Collins, and John Glenn.
November 16, 2011
Do supernovae jets solve this ancient star mystery?
Explosive supernovae jets might explain why some Milky Way stars are mysteriously rich in gold, platinum and uranium.
November 16, 2011
Mars rover Curiosity nearly ready for launch
In preparation for the November 25 launch of the Mars rover Curiosity, NASA is planning a slew of events. Get connected here.
November 15, 2011
A fifth gas giant ejected from our solar system?
Earth might have been spared from a collision with Mars or Venus by the process in which a fifth gas giant world was ejected from our solar system.
November 14, 2011
Neil deGrasse Tyson sings a Symphony of Science
There are few astronomical videos that bring a tear to my eye anymore, but this one did. Neil deGrasse Tyson, you are wonderful.
November 14, 2011
Lutetia: Rare survivor from birth of Earth
Asteroid Lutetia appears to have formed from the same material as Earth, Venus and Mercury, 4-and-a-half billion years ago.
November 13, 2011
Killer solar flares a physical impossibility in 2012
The sun is now rising to the peak of its 11-year cycle of activity. But it's not possible for killer solar flares to end humanity or destroy Earth.
November 11, 2011
Close-passing asteroid 2005 YU55: More images
Bookmark this page to see the latest images of asteroid 2005 YU55, which passed 200,000 miles (319,000 kilometers) from Earth on November 8, 2011.
November 10, 2011
Cosmic rock found in farmer’s field
The cosmic rock known as the Conception Junction meteorite was probably once part of the asteroid belt. It is a rare and very beautiful meteorite.
November 10, 2011
