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 ...

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 ...

NASA has selected two Colorado companies to help develop a future NASA space telescope that will look for signs of life on other planets. The flagship project, called the Habitable Worlds Observatory, ...

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).

While the James Webb Space Telescope continues to make headlines, a much larger observatory is quietly being built on Earth.

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) ...

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 ...

NASA's James Webb Space Telescope has hit critical development milestones and is nearing final assembly. NASA is confident of its launch timeline, currently set for October 2018. Share on Facebook ...

An illustration of the James Webb Space Telescope as it orbits the sun in our solar system, 1 million miles from Earth. Credit: ASA GSFC / CIL / Adriana Manrique Gutierrez The James Webb Space ...