NASA telescope may have found antimatter annihilating in possibly the biggest explosion since the Big Bang

What it takes to keep NASA's flagship Chandra observatory flying for a quarter century

SpaceX rockets successfully launch back-to-back Starlink missions hours apart in return to flight (photos, videos)

SpaceX returns to flight with rapid-fire tripleheader

Glass shards reveal what was inside a Renaissance alchemist’s demolished laboratory

Move Over, Mathematicians, Here Comes AlphaProof

Drugmaker Sinergium to share bird flu vaccine data globally, says WHO

Germany's Sanssouci Park seeks solutions as its trees struggle with climate change

'That was a really wild experience': How brand-new NASA astronaut Andre Douglas joined Artemis 2 moon mission (exclusive)

Two meteor showers are set to peak this week. Here’s how to see them

Aurora alert: Strong geomagnetic storm could spark northern lights at mid-latitudes across US and Europe

The discovery of a possible sign of life in Venus’ clouds sparked controversy. Now, scientists say they have more proof

Coral restoration and adaptation benefits challenged

The first farmers often made landscapes more biodiverse, providing lessons for rewilding today

Has NASA found evidence of ancient life of Mars? An expert examines the latest discovery

NASA, JAXA bounce laser beam between moon's surface and lunar orbit