The 18th and final primary mirror segment is installed on what will be the biggest and most powerful space telescope ever launched. The final mirror installation Wednesday at NASA’s Goddard Space ...

HUNTSVILLE, Ala. – The first mirror segment that will fly on the James Webb Space Telescope, built by Northrop Grumman Corporation, has completed its first series of cryogenic temperature tests in the ...

In an early March test, engineers deployed the telescope's multi-segment mirror in its final configuration for the first time. It's quite a sight to behold, but we might have to wait longer than ...

Go behind the scenes with the James Webb Space Telescope, the most powerful observatory ever launched, as it reveals secrets of galaxy formation and the origins of our universe. Dive into an epic ...

Thankfully, NASA says the impact, which occurred between May 23th and 25th did not cause any serious damage. Webb should be right as rain after a realignment. Share on Facebook (opens in a new window) ...

The mirror array will have to be folded to fit into the Ariane 5 rocket that will launch the Webb into space, departing from the Guiana Space Center in French Guiana (South America).

From its halo-like orbit nearly a million miles from Earth, the James Webb Space Telescope is seeing farther than human eyes have ever seen. In May, astronomers announced that Webb detected the most ...

The James Webb Space Telescope was launched on Christmas Day, 2021. In January, it arrived at what is planned to be its permanent, high-orbit location about 930,000 miles from Earth. Quickly, it began ...