The Lick Observatory's telescope is now protected from the elements as rain is forecast to pummel the region.

When solar storms erupt from the sun and reach Earth, their intensity is measured against a historical benchmark: the Carrington Event. Now, a portrait of 19th century British solar astronomer ...

The James Webb Space Telescope and the Chandra X-ray Observatory have captured the clearest image yet of a galaxy cluster in the making, seen when the universe was only one billion years old.

Astronomers want to collect as much data as possible using as many systems as possible. Sometimes that requires coordination ...

Back in the earliest days of human history, long before even I was born, skywatchers noticed that the moon and planets drifted from month to month among ...