science

Closest known black hole to Earth spotted by astronomers

CAPE CANAVERAL, Fla. (AP) — Astronomers have discovered the closest known black hole to Earth, just 1,600 light-years away. Scientists reported Friday that this black hole is 10 times more massive than our sun. And it’s three times closer than…

Why is a NASA spacecraft crashing into an asteroid?

CAPE CANAVERAL, Fla. (AP) — In the first-of-its kind, save-the-world experiment, NASA is about to clobber a small, harmless asteroid millions of miles away. A spacecraft named Dart will zero in on the asteroid Monday, intent on slamming it head-on…