KOUROU, French Guiana - The James Webb Space Telescope, Hubble’s bigger, more powerful successor, is scheduled for liftoff on Christmas morning from the coast of South America. It will be the largest ...

February marked significant progress for NASA’s James Webb Space Telescope, which completed its final functional performance tests at Northrop Grumman in Redondo Beach, California. Testing teams ...

Observations of the supermassive black hole at the heart of the Milky Way, Sagittarius A*, collected by the James Webb Space ...

The long-awaited launch of the James Webb Space Telescope, the $10 billion successor to the iconic Hubble, has been delayed at least two days. The launch will now take place no earlier than the ...

In preparation for launch later this month, ground teams have successfully completed the delicate operation of loading the James Webb Space Telescope with the propellant it will use to steer itself ...

Watch NASA's live broadcast of the high-stakes launch from French Guiana, below. UPDATE: The James Webb Space Telescope has reached space. Read more in our story on the launch. NASA is about to send ...

Five young stars in the Ophiuchus region were studied to detect ultraviolet radiation and understand its role in the ...

A long-awaited telescope is finally ready to launch into space. Named after a former NASA administrator, the James Webb Space Telescope is bigger and more powerful than the iconic Hubble Space ...

The highly anticipated launch of the James Webb Space Telescope is facing yet another delay before it can lift off the launchpad. Heralded to be the premier space science observatory of the next ...

NASA now says Webb will go up on December 22, just a few days later than previously planned. Hopefully, this is the last delay Webb experiences. Share on Facebook (opens in a new window) Share on X ...

The launch of the $10 billion spacecraft, which scientists hope will see back to the time when the first galaxies were formed, has been... The launch of the James Webb Space Telescope, the ...

This week, we got a new view of space. And it was epic. Cosmic cliffs of glowing gas, spinning galaxies, dying stars. The James Webb telescope caught those images of ancient history — billions of ...