The James Webb Space Telescope's 21.3-foot (6.5 meter) diameter primary mirror. (Image credit: NASA/C. Gunn) Aside from its hexagonal shape and enormous size, Webb's most distinctive feature is ...

The James Webb Space Telescope is now, finally, a fully deployed telescope.On January 8, 2022, NASA made history by successfully unfolding the telescope’s primary mirror — the largest of its ...

NASA's massive James Webb Space Telescope has notched another milestone with all 18 primary mirror segments and the secondary mirror fully deployed.

The James Webb Space Telescope successfully completed the unfolding of its giant gold mirror on Saturday. This rounds out some of the greatest challenges and deployments for Webb since it launched ...

The James Webb Space Telescope will be the most powerful space telescope ever built, and it will succeed NASA’s Hubble Space Telescope by 2018. Powering this massive observation machine is a huge ...

The James Webb Telescope has finally unfurled its rightmost primary mirror wing, completing the deployment process. It will now travel for about two more weeks to its final destination in deep space.

On May 20, 1990, the Hubble Space Telescope sent its first image to Earth. This photo turned out to be 50% sharper than ...

How does the camera on the James Webb Space Telescope work and see so far out? – Kieran G., age 12, Minnesota Imagine a ...

Researchers identified the likely planetary candidate’s infrared light after blocking out its host star’s overwhelming glare ...

The James Webb telescope has captured some seriously cool direct images of a planet beyond our solar system. This is the ...

Maggie Aderin-Pocock tells us about the power of the James Webb Space Telescope and how she inspires disadvantaged students ...

The Vera C. Rubin Observatory in Chile has to be able to image a framing of the night sky as large as seven full moons side ...