Space telescopes like Hubble and Webb have dramatically changed the way we explore the universe, offering unparalleled views ...

To avoid this restriction, which is known as vignetting, Cui explains that the team separated the two lenses and inserted a Keplerian telescope between them. “This ‘telescope-within-a-microscope’ ...

Astronomers have achieved a first in exoplanet hunting by using the Hubble Space Telescope images to investigate a mysterious ...

This unprecedented view of the Bullet Cluster provided by the James Webb Space Telescope and the Chandra X-ray Observatory ...

The Hubble Space Telescope will still be NASA's primary visible light telescope after the launch of the James Webb Space Telescope (JWST) later this week, experts at the space agency said. JWST is ...

A new observatory in Chile has produced a stunningly detailed image of a nebula resembling cotton candy, using the largest ...

Due to how light travels, we can only see the most eye-popping details of space—like nebulas, supernovas, and black holes—with specialized telescopes.

The ring of light, known as an Einstein Ring, was discovered in September 2023 by Euclid, a space telescope on a six-year mission to map out the cosmos by observing billions of galaxies.

The James Webb Space Telescope will give a glimpse of the earliest galaxies formed after the Big Bang — but only if the telescope is kept frigid. That's why there's a tennis court-sized sunshield.

The larger the telescope’s diameter, the more light it will collect. A 4-inch refractor, for example, is a great scope for planets, the Moon, and double stars.

The $1.4B Thirty Meter Telescope pitted people against each other with some claiming it would desecrate the state' s ... Officials green-light massive telescope on sacred Hawaiian mountain.

A stargazer with a moderately sized telescope with a 20-cm aperture could potentially see visible light from near the black hole V404 Cygni, located about 7,800 light-years from Earth.