Space Telescope

Astronomers have discovered what appear to be massive galaxies dating back to within 600 million years of the Big Bang, suggesting the early universe may have had a stellar fast-track that produced these “monsters.”

The first image from NASA’s new space telescope unveiled Monday is brimming with galaxies and offers the deepest look of the cosmos ever captured.

NASA’s new space telescope is in the home stretch of testing, with science observations expected to begin in July, astronomers said Monday.

NASA’s new space telescope has gazed into the distant universe and shown perfect vision.

NASA’s new space telescope has captured its first starlight and even taken a selfie of its giant, gold mirror.

The world’s biggest, most powerful space telescope arrived at its observation post 1 million miles from Earth.

The world’s largest and most powerful space telescope rocketed away Saturday on a high-stakes quest.

James Webb Space Telescope, the largest and most powerful space telescope ever constructed, will lift off on Christmas.

NASA Administrator Bill Nelson confirmed Friday that the James Webb Space Telescope will attempt to blast off on Dec. 24. A European Ariane rocket will provide the lift from South America’s French Guiana.