Go outside, and look for the waxing gibbous moon tonight. Then notice the stars nearby. Tonight's moon is within the Winter Circle stars.

A lunar sample collected during Apollo 17, the final mission to the moon, is now on display in President Biden's Oval Office.

Mars and Uranus passed close to each other in a conjunction on January 21, 2021. Photos from the event captured by EarthSky readers available here.

China's Chang'e 5 moon mission successfully returned moon rocks to Earth in December 2020 for the first time in 45 years. It's now headed toward an Earth-sun Lagrange point, with the goal of making sun observations.

A commercial nanosat called SpaceTy Beihangkongshi-1 - launched November 2020 - has successfully used an iodine thruster to change its orbit around Earth. This new thruster might help clear space junk by steering small satellites, at the end of their missions, back into Earth's atmosphere where they'd burn up.

The bright waxing gibbous moon shines in front of the constellation Taurus the Bull on January 22, 23 and 24, 2021. Here's how to look for the famous Pleiades star cluster and Taurus' brightest star, Aldebaran. The moon will pass between them on these nights.

A crack on the Antarctic ice shelf grew dramatically in late 2020 into 2021. Scientists are watching to see if the rapidly accelerating crack will cause the shelf to rip apart before Antarctica's sunlit summer season - going on now - comes to an end.

The mission team for NASA's InSight lander called off its attempts to try to dig deeper into Mars with the heat probe known as "the mole." Meanwhile, the rest of the mission gained an extension to December 2022.

FAST's 500-meter (1,640-foot) dish makes it the world's largest single-dish radio observatory. It's expected to open to international observers in 2021.

SpaceX launched 60 more of its Starlink satellites on January 20, 2021. SpaceX ultimately intends to launch tens of thousands of these satellites, to provide global internet access. Here's why astronomers are concerned.