A brilliant comet waved its tail above the site of the world's largest telescope as it lit up the night sky last month.

From a brain-inspired vision chip to an ice core time machine, these were the most important breakthroughs last year, according to nation's top experts As China and the United States go head-to-head ...

The trail is a curated collection of national and state parks, observatories, planetariums, and musuems that offer travelers ...

One photographer put the age of starlight into perspective with stunning projections on some of Earth's oldest rock ...

Featuring the world’s largest digital camera, the Vera C. Rubin Observatory will capture these mysterious phenomena in more ...

The city of Flagstaff has taken big steps to preserve the clarity of its night sky. Find out the best ways to experience the ...

The desert city in southern Arizona is a sanctuary for stargazers—and now it's even easier for visitors to explore.