The spectrum looked almost empty.
That was the clue. In the faint light from a red giant star called SDSS J0715-7334, astronomers found barely any sign of the heavier elements that later generations of stars forged and scattered across space. As a…

The spectrum looked almost empty.
That was the clue. In the faint light from a red giant star called SDSS J0715-7334, astronomers found barely any sign of the heavier elements that later generations of stars forged and scattered across space. As a…

As I write this, four astronauts are on their way around the moon for the first time in 50 years. A lot us have asked ourselves just exactly why you’d send people out that far when the environment is so hostile and we have increasingly…

Early observations from the Vera C. Rubin Observatory have already revealed more than 11,000 previously unknown asteroids, reshaping our view of the solar system and offering a striking preview of what’s to come once full science operations…

All his working life, the zoologist Athol McLachlan, who has died aged 86, was fascinated by chironomid midges, tiny, non-biting flies that spend most of their lives as aquatic larvae before emerging briefly as adults. His work on these…

Volcanic lightning looks chaotic, but it starts with something surprisingly small. Inside towering ash clouds, tiny grains of rock slam into each other over and over again, building up electric charge until the sky suddenly flashes.
Scientists…

Cloning was once seen as a way to copy life perfectly, with identical results each time. But a long-running experiment with mice revealed a different reality.
Scientists tracked cloned animals across many generations and found that, although…

On Christmas Eve 1968, the crew of NASA’s Apollo 8 moon mission captured the “Earthrise” photograph, which is perhaps the most famous image ever taken from space. Soon, the astronauts of Artemis 2 will try to replicate it during their own…

Aging takes a serious toll on the hippocampus, the part of the brain that plays a central role in learning and memory.
Scientists at UC San Francisco have now pinpointed a protein that appears to drive much of this decline.
FTL1 Emerges as a Key…

Aging takes a serious toll on the hippocampus, the part of the brain that plays a central role in learning and memory.
Scientists at UC San Francisco have now pinpointed a protein that appears to drive much of this decline.
FTL1 Emerges as a Key…

Quick facts
What it is: RCW 86, a supernova remnant
Where it is: 8,000 light-years away, in the constellation Circinus
When it was shared: March 24, 2026
One of the oldest recorded astronomical events observed by humans has gotten a fresh look from…