Live updates from the Starlink 6-99 mission, which launched 8:42 a.m. Dec. 17 from Pad 39A at NASA's Kennedy Space Center.

The space object, which was only recently discovered by scientists, will pass closest to Earth on Friday, December 19. Here's ...

Comet 3I/ATLAS is the third known interstellar comet after 2017's 1I/'Oumuamua and 2019's 2I/Borisov. It was discovered on ...

Comet 3I/ATLAS will make its closest approach to Earth at 1 a.m. EST (0600 GMT) on Dec. 19. At that time, it will be about ...

Interstellar comet 3I/ATLAS will fly by our planet at a safe distance of 1.8 astronomical units (roughly 167 million miles or ...

Comet 3I/ATLAS, the third interstellar object ever detected, will swing closest to Earth overnight from Thursday to Friday ...

Comet 3I/ATLAS is a rare visitor passing briefly through our solar system. Here’s how to find it in the night sky—and what ...

The billion-dollar unicorn isn't all that special anymore. Welcome to the age of the hectocorn, when startups are valued in ...