Here's everything to know about the James Webb Space Telescope, and what it captured on its three-year anniversary observing ...

The James Webb Space Telescope has successfully deployed all five layers of its tennis-court-sized sunshield.

NASA's James Webb Space Telescope is three days into the deployment of its massive sunshield — and it still has about three days to go.

The mighty James Webb and Hubble space telescopes united to reveal stars being born inside the Small Magellanic Cloud, which orbits the Milky Way.

The James Webb telescope completed its final major step of deployment on Saturday morning, when the last mirror wing of the telescope unfolded in space into its final configuration.

This unprecedented view of the Bullet Cluster provided by the James Webb Space Telescope and the Chandra X-ray Observatory ...

The James Webb Space Telescope has fully unfurled its complex, massive sunshield A delicate ballet of cables, membranes, and other moving parts is complete, 600,000 miles from Earth. Hannah Seo ...

The James Webb Space Telescope, NASA’s premier observatory of the next decade, successfully launched to space Saturday morning. The telescope will study exoplanets in new ways and look deeper ...

NASA has just released a new documentary about the most powerful space telescope ever built, and you can watch it now.

HH 30 is a luminous region surrounding a newborn star, or protostar. The James Webb Space Telescope helped reveals unprecedented details of it.

The James Webb Space Telescope has successfully deployed all five layers of its tennis-court-sized sunshield, a prerequisite for the telescope's science operations and the most nerve-wracking part ...