The Crew-11 mission is coming to an early end so that one of its members can receive medical attention back on Earth. The Moon's weaker gravity results in slightly faster clocks than on Earth. With ...

Eric and Wendy Schmidt are backing a start-up-like approach to building a giant space telescope and powerful ground observatories. By Kenneth Chang After canceling a spacewalk planned for Thursday, ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. On Jan. 11, 1787, the English astronomer Sir William Herschel discovered two moons at Uranus!

See what moon phase it is tonight and find out when you can see the rest of the moon phases for 2026. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...