Astronomers have constructed telescopes of every kind - massive observatories designed to pick up faint traces of light ...

The most familiar type of telescope is the refractor. It uses two lenses, one to collect the light and form an image, called ...

China has begun expanding the Five-hundred-meter Aperture Spherical Telescope (FAST), the world’s largest and most sensitive ...

High in the Chilean desert, the Extremely Large Telescope is taking shape. It promises sharper views of space than we've ever seen — but will Australian astronomers be able to use it?

Discover the wonders of telescopes, from their design to their limits, and the advanced technology behind modern astronomical ...

We put optical observatories on tops of high mountains to get them above the clouds and away from our light pollution.

Astronomers have published a gigantic infrared map of the Milky Way containing more than 1.5 billion objects ― the most ...

Views of a massive galaxy cluster Abell 2256 have been captured by NASA’s Chandra X-ray Observatory, ESA’s XMM-Newton and ...

NASA's Webb Space Telescope keeps spotting details no one has seen before: countless galaxies, clouds of dust birthing new ...

Astronomers observed a close pair of black holes dancing around one another using the Hubble Space Telescope and Chandra ...

Radio waves from Starlink satellites are hindering the work of astronomers and affecting astronomical discoveries.

A year and seven months after 700 gallons of fuel spilled at a Space Force observatory located atop a sacred Hawaiian volcano ...