Herschel's primary mirror spans 11.5 feet (3.5 meters) in diameter — 50 percent larger than the mirror on the Hubble Space Telescope. The instrument, named after 18th century German astronomer ...

Here's everything to know about the James Webb Space Telescope, and what it captured on its three-year anniversary observing the cosmos. To mark Webb's third year of operations, NASA shared an image ...

The whole picture doesn’t become clear until you combine Webb data with Hubble data,” stated Rogier Windhorst, Regents Professor at Arizona State University, captioning a revolution in cosmic vision.

All good things come to an end and the European Space Agency’s Herschel Space Observatory mission is no exception. After more than three years in orbit, the most powerful infrared telescope ever ...

The European Space Agency's Herschel observatory, the world's largest infrared space telescope, will meet its end soon once it runs out of vital coolant, scientists say. See images from the ...

The European Space Agency’s Herschel space observatory -- the largest, most powerful infrared telescope ever flown in space -- has run out of liquid helium coolant, ending more than three years ...

Herschel's primary mirror spans 11.5 feet (3.5 meters) in diameter — 50 percent larger than the mirror on the Hubble Space Telescope. The instrument, named after 18th century German astronomer ...

Named for famed 18th century astronomer William Herschel, the space telescope was the most powerful infrared observatory ever launched to space until it stopped functioning this week.

Europe's Herschel Telescope Goes DarkAfter nearly four years mapping the “hidden universe,” the largest infrared telescope ever launched into space has reached the end of its life, European ...

Still, Herschel's demise leaves a gap for astronomers. The mammoth James Webb Space Telescope, often praised as the replacement for Hubble, will image in infrared.

It was bound to happen sooner or later: The European Space Agency's Herschel Space Telescope has run out of the liquid helium it uses to keep cool. With the temperatures of all instruments on ...