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Spotlight on China's Moon Rover
The upcoming launch of China's Chang'e-3 Moon lander and rover follows a busy year for the Chinese space program. Awareness of China's growing strength in spaceflight is rising throughout the world. ... more
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Will comet ISON survive its near brush with the Sun?
US astrophysicists are split over what will happen when the comet ISON passes near the sun Thursday, but a majority think it will break apart. ... more
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Do Black Holes Come in Size Medium?
Black holes can be petite, with masses only about 10 times that of our sun - or monstrous, boasting the equivalent in mass up to 10 billion suns. Do black holes also come in size medium? NASA's Nuc ... more
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Scientists Seek Other Scientists for Cosmology Problem
How do you measure something that is invisible? It's a challenging task, but astronomers have made progress on one front: the study of dark matter and dark energy, two of the most mysterious substan ... more
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