Asteroid 2011 AG5 may pose an impact threat to Earth in the year 2040, and some scientists are advocating that more studies be conducted on the potentially dangerous space rock now.

A large defunct NASA satellite is expected to fall to Earth late Friday afternoon (eastern time), September 23, or early Saturday morning. As it makes the plunge, it will catch fire and break ...

The asteroid 2011 AG5, which could potentially be headed on a collision course toward Earth in 2040, poses a very slim chance of danger to our planet, NASA scientists say.

2011 CQ1 is tiny by asteroid standards, only about 6.5 to 10 feet across. But though it is small, it will be close. The last asteroid to come within moon-distance to Earth, 2010 TD54, stayed a ...