In Professor K.T. Ramesh's First Year Seminar, Defending the Planet: How to Stop an Asteroid, four years have passed in only two months. By the end of the semester, it will be 2036 and a simulated ...

Historically planetary defense research has focused on deflecting asteroids by using momentum to nudge their cosmic course ...

NASA intentionally crashed a spacecraft into an asteroid a few years ago as part of its planetary defense test. Scientists have discovered that the impact actually nudged the asteroid onto a slightly ...

In a recent interview, NASA’s Acting Planetary Defense Officer Dr Kelly Fast told The Times that space agencies have no current way to stop an asteroid should it pose an imminent threat to Earth. Her ...

Add Yahoo as a preferred source to see more of our stories on Google. A camera on NASA's DART spacecraft captures Dimorphos, left, and Didymos as it approaches for a direct hit of the smaller of the ...