Space officials called it a "lucky strike" when space debris smacked into the skinny robotic arm on the space station, creating a hole now seen in images.

The US Pentagon UFO report - an unclassified document - is due in June 2021. It's supposed to reveal everything government agencies know about UFOs.

Enjoy a few photos of the May 21, 2021 lunar eclipse from EarthSky friends around the world. Thanks so much to all who shared your photos with us!

The complex interplay among many factors - African monsoons, ocean temperatures, wind shear, El Niño and La Niña – that go into predicting hurricane season.

Stone Age artifacts excavated near the shores of Lake Malawi in eastern Africa, combined with evidence drawn from the lakebed itself, provides the earliest evidence of ancient humans using fire to enhance their world.

A podcast featuring Harvard theoretical physicist Avi Loeb, on the subject of whether 'Oumuamua - the strange object that swept through our solar system in 2017 - is an artifact of an alien intelligence.

Climatologists at NOAA have released updated climate "normals." They explain what "normal" means, how our U.S. climate normals have changed, and how to best make sense of them.

Some areas of the United States are starting to report the emergence of the Brood X cicadas after their 17-year absence.

If humanity wants to travel between stars, people are going to need to travel faster than the fastest-moving stuff known in our universe: light. New research suggests that it might be possible to build warp drives and beat the galactic speed limit.

The Chinese Tianwen-1 mission’s Zhurong rover will attempt to land on the surface of Mars in mid-May 2021.