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The Artemis II moon mission was a great success. But America's longterm ambitions in space may deserve some scrutiny, a law scholar argues, given the nation's recent conduct on Earth.
Science news this week April 18, 2026: Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the weekend
In a galaxy 500 million light-years away, two supermassive black holes could merge, spreading gravitational waves across the universe.
Photographers caught a spectacular emerald-green fireball meteor streaking above Lindisfarne in northeast England, where Viking raiders famously killed and robbed Christian monks in the eighth century.
A large hole opened up in the sun's atmosphere this week, spewing high-speed solar winds that will paint northern lights displays across several U.S. states this weekend.
Bears in Svalbard, Norway, are fatter than expected, and others in Greenland are showing signs of genetically adapting to climate change — but the signs elsewhere are not good.
The Colorado River muscled its way through today's Grand Canyon after pooling as a giant lake, according to new research.
A new study suggests rare earth elements form in magma above ancient subduction zones, as that magma reacts with substances that are released when one tectonic plate dives beneath another.
Earth from space A 2010 satellite photo shows the point where a small lake bisects the snowy rim of an ancient glacier on Canada's Baffin Island. The rippling, snow-rimmed structure is the last remaining fragment of a colossal ice sheet that once covered large parts of North America.
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The stories about King Arthur are almost certainly false or greatly exaggerated, but did the man himself exist?
The temple included a network of water infrastructure, revealing the importance of the ancient city and the Nile.
Shoes can give us an interesting insight into what people used to wear. Here are a dozen of the most extraordinary finds from the archaeological record.
An ancient-DNA analysis of a rare Anglo-Saxon double burial revealed the people in the grave were brother and sister.
Over the past 10,000 years, evolution in West Eurasia has been selecting for light skin, red hair and resistance to HIV and leprosy in humans, according to a new study.
When their queen dies, naked mole rat females usually wage bloody battles of succession. But peace may be possible, a new study suggests
A new study adds to the growing body of evidence that lobsters feel pain, with the crustaceans seemingly responding to electrical shocks with emotional distress.
Using synchrotron X-ray CT scans of a fossilized, intact embryo, researchers found evidence that the plant-eating mammal Lystrosaurus laid eggs, which answers a key question about mammalian evolution.
During the Triassic, a newly described species related to modern crocodiles and alligators stalked prey on land, not the water, a new study finds.
Three orcas from Alaska surfaced in the waters between Washington state and Canada in March, an area where they've never been documented.
The first well-observed "civil war" in wild chimpanzees reveals that shifting social ties alone can fracture a group, igniting deadly conflict between former friends.
A new and potentially safer opioid has been tested in lab rats, and the results suggest it relieves pain with a lower risk of addiction than other drugs in its class.
A new drug that works by making tumors more susceptible to chemotherapy and the immune system has increased survival in those with advanced pancreatic cancer in a trial.
Dr. Paul Broca conducted an autopsy on a patient known as "Tan," who had aphasia, or the inability to speak. Broca's work identified a region of the brain that is key to spoken language.
In a strange medical case, a woman suddenly started hearing voices, and they directed her to seek care for a brain tumor.
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A group of hackers used both Claude Code and ChatGPT in a cybersecurity hack that lasted two and a half months.
For the first time, researchers measured singularities in combined light and sound waves moving faster than the speed of light. The findings have implications in fluid dynamics, optics and many other fields.
For the first time, scientists have observed quantum entanglement in the momentum of massive particles. The result, decades in the making, could help physicists probe the relationship between quantum mechanics and gravity.
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Buying Guide These are the best budget fitness trackers you can buy in every category, from Fitbit Inspire 3 and Xiaomi Smart Band 10 to Garmin Forerunner 165.
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