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Latest news
When is the fall equinox, and why does it happen?
On Monday, Sept. 22, day and night will be nearly equal in length as Earth's axis is side-on to the sun, officially beginning autumn in the Northern Hemisphere.
Asteroid Apophis flyby will be 'once in a millennium' opportunity for skywatchers and scientists
In 2029, asteroid Apophis will skim safely past Earth, where it will be visible to billions. For scientists, it's a once-in-a-millennium planetary experiment.
NASA rover spots bizarre 'turtle' hiding among ancient rocks on Mars
NASA's Perseverance rover has photographed a peculiar rock formation that looks eerily like a turtle poking its head out from its protective shell.
Human stem cells become more active in space — and that's not a good thing
Stem cells age faster and become functionally exhausted in low Earth orbit, making crewed long-duration space travel even more challenging.
Scientists create first-ever visible time crystals using light — and they could one day appear on $100 bills
The visible patterns produced by the time crystals could be used for data storage and anti-counterfeiting designs.
Gigantic 'letter S' spotted on the sun just before a 'dark eruption' hurls a fiery shadow at Earth
A giant S-shape structure, around 10 times wider than Earth, recently appeared in the center of the sun, moments before our home star unleashed an even larger plume of plasma that later crashed into our planet.
Scientists are finally learning what's inside mysterious 'halo' barrels submerged off Los Angeles
At first thought to hold the pesticide DDT, some mysterious barrels dumped in the deep sea near Los Angeles actually contain caustic alkaline waste that stops most life from living nearby.
Microsoft's new light-based computer is inspired by 80-year-old technology — it could make AI 100 times more efficient
Microsoft's latest computing system uses micro-LEDs and camera sensors to perform calculations.
'Extraordinary' Roman helmet from war-ending battle found in the sea off Sicily
Archaeologists recovered the "Montefortino"-style helmet in an underwater excavation in the Aegadian Islands off the coast of Sicily.
New photos of comet 3I/ATLAS reveal its tail growing before our eyes
New images reveal interstellar comet 3I/ATLAS beginning to grow a signature tail as it zooms closer to the sun ahead of a close encounter with Earth this fall.
'Blood moon' gallery: Stunning snaps from last night's total lunar eclipse
A "blood moon" hovered above parts of the globe last night. And while North America missed out, we've rounded up some of the best photographs of September 2025's total lunar eclipse.
Meet the Chinese supercar that just smashed the EV speed record
Chinese EV maker BYD has designed and tested a supercar with a top speed that rivals the best gasoline cars.
2,200-year-old gold coin depicting ancient Egyptian queen discovered in Jerusalem
Archaeologists in Jerusalem have discovered a 2,270-year-old gold coin with Queen Berenice II of Egypt and the inscription "of the Queen," suggesting she was a powerful and influential monarch.
Extreme thinness: Scientists are investigating why some people struggle to gain weight
Researchers are exploring why some individuals are naturally super-lean and may struggle to gain weight. The causes of such constitutional thinness offer clues to the physiology of weight control.
Scientists find 'something extraordinary' in famous supernova's troubled heart
Scientists using the Chandra X-ray telescope have uncovered new details about the famous supernova remnant Cassiopeia A.
A scalding hot 'sand battery' is now heating a small Finnish town
Engineers create a sand battery that they say will slash the carbon emissions in Pornainen, Finland, by 70% — it uses renewables to heat the sand to more than 1,000 degrees Fahrenheit.
Science news this week: A key Atlantic current nears collapse, the world's biggest iceberg shatters, and mouse brains rewrite neuroscience
Science news this week Sept. 6, 2025: Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the weekend.
The universe's first magnetic fields were 'comparable' to the human brain — and still linger within the 'cosmic web'
New computer simulations suggest the first magnetic fields that emerged after the Big Bang were much weaker than expected — containing the equivalent magnetic energy of a human brain.
