NASA Public Release of 'Why We Explore Space' concept maps and videos -- complete list
Watch Pascal Lee's video on Phobos & Deimos and the search for life on Mars.
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February 02, 2012
February 01, 2012
If robots have tear ducts, they'll be giving them a good workout this week. Dick Tufeld, the voice of one of television's most famous robots, has died at the age of 85.
January 30, 2012
They're gray, big-eyed, and smoother than a buffed Maserati. They're aliens à la Hollywood. Lacking noses, ears, hair, and a sense of humor, these short-statured creatures are omnipresent in sci-fi films and TV.
Not surprisingly, many members of the public assume that if we ever interact with real extraterrestrials, they'll probably resemble these colorless critters. Indeed, if you look at the drawings of aliens made by people who believe that Earth is under saucer attack, you'll quickly note that most of these invaders fit the Tinseltown mold.
January 26, 2012
The Moon is a ball of left-over debris from a cosmic collision that took place more than four billion years ago. A Mars-sized asteroid—one of the countless planetesimals that were frantically churning our solar system into existence—hit the infant Earth, bequeathing it a very large, natural satellite.
January 17, 2012
For decades we've been sending signals - both deliberate and accidental - into space, and listening out for alien civilisations' broadcasts. But what is the plan if one day we were to hear something?
If we ever detect signs of intelligent alien life, the people likely to be on the receiving end of a cosmic signal are the scientists of Seti, aka Search for Extraterrestrial Intelligence.