On Christmas Eve 1968, the Earth received a message from astronauts on a mission like no other - the first around the moon. NASA will return in 2026.

The northern lights could be visible across 10 U.S. states tonight (Dec. 23-24) as soon as it gets dark, so it's worth keeping an eye on the sky throughout the evening, especially in areas with clear, ...

A 14%-illuminated waxing crescent moon will hang low in the southwest tonight, soon after sunset, still in Capricorn, with ...

The livestream will now begin Friday at 11 p.m. EST, Dec. 19 (0400 GMT on Dec. 20), weather permitting, after rain prevented ...