Or should we stick with sending robots? Planetary geologist Ulrich Köhler from the German Aerospace Center says robots can accomplish a lot, but people could do more.
Space travel sounds super, doesn't it? But do yourself a favor and know what you're getting into. That's advice from astronomer, Neil F. Comins. He's written a timely guide for would-be Mars and moon colonists.
The discovery of seven new Earth-like planets has risen hope to find extraterrestrial life. During space explorations, though, researchers have to be careful to avoid contaminating other worlds with life from Earth.
For a few years in the 1960s and 70s the moon was "our future." Then it fell from favor. More recently we've dreamt of life on Mars. But looking back at the Lunar Orbiter missions, it may be time to return to the moon.
Thirty-two shots collecting images over six years from the European Space Agency offer a new look at the the red planet's white, frozen north pole.
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