Dust ground off icy bodies in the Kuiper Belt, the cold-storage zone that includes Pluto and millions of other objects, creates a faint infrared disk potentially visible to alien astronomers looking for planets around the sun. Neptune’s gravitational imprint on the dust is always detectable in new simulations of how this dust moves through the [...]
NASA, which used Twitter to send updates about the Mars Phoenix Lander programme, is turning to the micro-blogging service again. The US space agency announced on Monday that astronaut Mike Massimino would be using Twitter to provide a behind-the-scenes look at his training for an upcoming space shuttle mission. Massimino will be firing off 140-character-or-less [...]
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