
JWST May Have Seen the First Stars in the Universe
Although these findings from JWST are yet to be confirmed, they mark the closest astronomers have come to locating the universe’s most ancient stars

JWST May Have Seen the First Stars in the Universe
Although these findings from JWST are yet to be confirmed, they mark the closest astronomers have come to locating the universe’s most ancient stars

After Last Week’s Spectacular Auroras, What’s Next for the Sun?
The sun’s current 11-year activity cycle has already peaked—but extreme outbursts from our star may still be in store


Mars sample that may contain evidence of life might never come home
NASA spent years and billions of dollars collecting Martian samples to bring home. Now they might be stranded

The Leonid Meteor Shower Is Peaking—Here’s How to Watch This Fireball-Filled Event
A thin crescent moon and dark skies could give watchers a clear view of this astronomical event

Does the universe keep secrets? Inside the black hole information paradox
Black holes and quantum mechanics present a paradox about the preservation of information

Scientists Measure the Temperature of the Universe Just after the Big Bang
Quark-gluon plasma, a bizarre state of matter that mimics the early cosmos, is the hottest thing ever made on Earth

Sun Continues Celestial Fireworks Display with Powerful Solar Flare
The same region on the sun that’s responsible for this week’s stunning auroral display just erupted in another powerful solar flare early on Friday morning

This Mars-Bound Spacecraft Will Test Jared Isaacman’s Vision for NASA
NASA’s presumptive next leader wants to outsource more of the space agency’s interplanetary science. The newly launched ESCAPADE mission to Mars offers a sanity check for those plans

Stranded Chinese Astronauts Return to Earth, but Space Junk Threats Remain
The Shenzhou 20 spacecraft was too damaged to bring its crew home from China’s Tiangong space station. Those astronauts have now returned via the Shenzhou 21 craft, leaving its crew without a return ride until the nation sends a new spacecraft to the station

We Had a Name for ‘Galaxies’ before We Knew They Existed
Centuries before other galaxies were known to exist, astronomers called them “spiral nebulas.” Today the defunct term still sparks confusion

Blue Origin’s NASA Launch to Mars Is a Shot across the Bow for SpaceX
After delays, Jeff Bezos’s rocket company successfully launched a NASA mission to study Mars on Thursday

Dangerous Rogue Waves Aren’t Random—They’re Predictable
An 18-year dataset from the North Sea reveals that rogue waves are not freak accidents but particular products of ordinary swells stacking up—an insight that could make prediction possible