NASA's Deep Impact spacecraft is running on fumes after chasing down two comets in the last five years, but the probe's cosmic work may not be done yet. Subscribe to read this story ad-free Get ...

Scientists on the trail of comets in deep space "reluctantly" announced Friday an end to NASA's Deep Impact mission after nearly a decade that included celestial fly-bys and hundreds of thousands of ...

We've all seen the movie Deep Impact. That 1998 thriller where a comet barrels toward Earth, forcing world leaders to pick lottery winners for survival bunkers while the rest of us brace for the end.

NASA's Deep Impact spacecraft is on course for a July 4 encounter with comet Tempel 1, but mission officials are trying to determine why one of the probe's telescopes has not focused properly, the ...