jwst
Latest about jwst

In emergency decision, James Webb telescope will study 'city-killer' asteroid 2024 YR4 before its close approach to Earth
By Brandon Specktor published
In a rare "time-critical" decision, the James Webb Space Telescope will study the true size of the "potentially hazardous" asteroid 2024 YR4 twice over the next few months. The asteroid has a roughly 2.3% chance of impacting Earth in 2032.

Supermassive black holes in 'little red dot' galaxies are 1,000 times larger than they should be, and astronomers don't know why
By Robert Lea published
"Our measurements imply that the supermassive black hole mass is 10% of the stellar mass in the galaxies we studied."

James Webb Space Telescope quiz: How well do you know the world's most powerful telescope?
By Ian Stokes published
Quiz The James Webb Space Telescope can look deeper (and earlier) into the cosmos than any telescope before it. How much do you know about this wonder of technology and its incredible findings?

Space photo of the week: James Webb and Chandra spot a cosmic 'Christmas Wreath' sparkling in the galaxy next door
By Jamie Carter published
There's a cosmic 'Christmas Wreath' hanging in the Small Magellanic Cloud, the James Webb and Chandra telescopes revealed in a sparkly new image.

James Webb telescope uncovers massive 'grand design' spiral galaxy in the early universe — and scientists can't explain how it got so big, so fast
By Joanna Thompson published
Galaxies in the early universe tend to be clumpy, but the new JWST discovery of a "grand design" spiral galaxy just 1.5 billion years after the Big Bang has scientists stumped.

James Webb telescope spies stunning 'Firefly Sparkle' galaxy — a baby clone of the Milky Way being 'assembled brick by brick' in the early universe
By Harry Baker published
The James Webb Space Telescope has captured an image of a baby, Milky Way-like galaxy that formed more than 13 billion years ago. This "Firefly Sparkle" galaxy could reveal how our own galaxy evolved.

James Webb telescope spots more than 100 new asteroids between Jupiter and Mars — and some are heading toward Earth
By Sharmila Kuthunur published
Astronomers analyzing archival images from JWST have discovered an unexpectedly vast population of the smallest asteroids ever seen in the asteroid belt between Mars and Jupiter.

'We know so little': Bizarre 'runaway' planets discovered by James Webb telescope may be failed stars in disguise
By Abha Jain published
A new theory explains how dozens of mysterious planet pairs discovered by the James Webb Space Telescope, dubbed "JuMBOs," may have formed.

James Webb Space Telescope smashes its own record to find the earliest galaxies that ever existed
By Ben Turner published
The James Webb Space Telescope has spotted five galaxy candidates dating to just 200 million years after the Big Bang, making them the earliest ever detected. And there could be many more.
Sign up for the Live Science daily newsletter now
Get the world’s most fascinating discoveries delivered straight to your inbox.