The European Southern Observatory's (ESO) Extremely Large Telescope (ELT) — the world's largest visible- and infrared-light ...

"The question 'Are we alone?' is one of the most significant questions, not just in the history of science, but in the ...

Astronomers have been battling threats to their clear skies on all fronts lately. One of the most notable battles, which we ...

The magnificent Andromeda galaxy (Messier 31), stands out as the most important nearby stellar island to our Milky Way, and ...

That could soon change, thanks to a new NASA flagship telescope being designed to seek out strange new worlds that could support life as we know it. Called the Habitable Worlds Observatory ...

The Rubin Observatory will eventually hold the world's largest digital camera. It's therefore a good sign it has aced its ...

The next great space telescope will study distant galaxies and faraway planets from an orbital outpost about a million miles ...

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

Roman aims at providing new perspectives and information ... touch upon the possibilities of life in other worlds as well. The Roman Space Telescope, described most often in one giant leap in ...

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

For humans, the most important star in the universe is our sun. The second-most important star is nestled inside the ...