Giant ground-based reflector telescopes do much of astronomy's heavy lifting, although the U.S.'s largest in Hawaii is not ...

ESO estimates the complex will leak as much light pollution as a city with a population of about 20,000. Parts of the ...

Astronomers are raising concerns about the impact of light pollution from a renewable energy project on the world’s most ...

A little-known chapter of the Hubble Space Telescope’s history is a reminder of the risks of looking at the sun ...

From magnification to light-gathering, here’s how to make the decision between buying a telescope or a monocular for ...

Ever since NASA’s James Webb Space Telescope was launched, it’s been revealing more about the universe than even most ...

The James Webb Space Telescope has spotted one of the earliest and most distant supernovas, marking the death of a stellar ...

With new images from the Hubble Space Telescope, we have new information here in the Milky Way about our closest neighboring ...

Astronomers have captured the most detailed infrared images yet of an active galactic nucleus (AGN), using the Large ...

The long-closed, 1920s-era observatory in Lake Angelus is important to astronomy buffs. But its private ownership has ...

Chile's Atacama Desert is home to some of the best Earth-based observatories, though an energy company is throwing a wrench ...

European Southern Observatory Director General Xavier Barcons told Space.com that astronomers expect the project to brighten the sky by up to 10 percent around the observatory.