Liquid water apparently flowed on the surface of the huge asteroid Vesta briefly in the relatively recent past, a surprising new study suggests.
NASA has released radar observations of the 325 meter-wide asteroid that flew safely past Earth today, but in those grainy observations, asteroid 2004 BL86 appears to have company -- a small moon.
A mountain-size asteroid will zoom past Earth Monday (Jan. 26), marking the closest pass by such a large space rock until 2027.
On Jan. 26, astronomers will be keeping their eyes peeled for a large space rock that is due to make a fast dash past the Earth-moon system.
Claims that Russian scientists have discovered a huge asteroid that could threaten Earth in the near future are just not correct, according to NASA.
Japan on Wednesday successfully launched a probe destined for a distant asteroid on a six-year mission, just weeks after a European spacecraft's historic landing on a comet.
Following a successful mission to return samples from an asteroid to Earth, Japan is poised to launch a follow-on expedition, with hopes of finding organics.
Astronomers have discovered that a well-known asteroid has a bit of an identity crisis.
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