NASA launched its Deep Impact mission to crash into comet Tempel 1, also known as 9P/Tempel. Two spacecraft were launched ...

On a long enough timescale, an asteroid, comet, or other impactor will come calling ... and planning for an eventual impact.

In fact, a comet, discovered the previous year by high school student Leo Biederman and astronomer Dr. Marcus Wolf, is on a collision course with the Earth, an Extinction Level Event. A joint US ...

In fact, a comet, discovered the previous year by high school student Leo Biederman and astronomer Dr. Marcus Wolf, is on a collision course with the Earth, an Extinction Level Event. A joint US ...