If you’re seeing a bright star after dark and then once again later into the night, it’s Jupiter. It will remain a very bright light in the night sky until mid-January. The solar system's ...

CAPE CANAVERAL, Fla. -- Europe’s Euclid space telescope has detected a rare halo of bright light around a nearby galaxy, astronomers reported Monday. The halo, known as an Einstein ring, encircles a ...

When the Moon is this bright it’s as bad as artifical ... can be viewed with the naked eye from an extremely dark sky site—one with zero light pollution—that applies to when there’s ...