The National Science Foundation’s Daniel K. Inouye telescope debuted a close-up of the sun captured by its new, ...

Beneath a breathtaking full Moon, construction on the world’s largest optical and infrared telescope—the ELT—progresses in ...

The telescope may well have outdone itself by revealing evidence of life on a world about 120 light years from Earth.

The massive dome measures 305 feet (93 meters) in diameter, or about the size of a football field and stands 263 feet (80 ...

The Hubble Space Telescope celebrates 35 years of groundbreaking discoveries, stunning imagery, and a lasting impact on ...

Just how powerful is the world's most powerful telescope? Let's start with the human eye. The human eye has an angular resolution of about 1 arcminute. That's pretty impressive. Take a circle ...