When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Breaking space news, the latest updates on rocket launches, skywatching events and more! You are ...

Astronomers in the 16th through 19th centuries used to wear rings that unfolded to become instruments used for calculations. The rings, which looked like normal finger rings, were actually armillary ...

A 10,000-pound package was delivered on Feb. 16 to the W. M. Keck Observatory near the summit of Mauna Kea. Inside is a powerful new scientific instrument that will dramatically increase the cosmic ...

A rare astronomy tool that helped medieval scientists tell time will remain in Britain after the British Museum scrambled to come up with the money to buy it. The brass device, called an astrolabe ...