The largest analysis of bat genomes and fossils suggests that the first bats emerged in Europe roughly 65 million years ago and that echolocation evolved early.
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In our field of applied mathematics, the long, human process of trial and error — not just the solutions themselves — is often what has led to progress.
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Found in volcanic streams in California, the newfound organism has the highest heat tolerance of any complex life on Earth.
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Scientists are developing imaging techniques and blood tests that one day may enable doctors to identify the disease definitively in living patients.
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Some viruses appear to vanish when outbreaks dissipate, only to emerge again. Scientists don’t always know which animals they lurk in — and how to stop them from spilling back over.
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A national survey has found that key mental health measures for teenagers have significantly improved from their worst levels during the pandemic.
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A corporate spat between two tech giants last week was just the latest volley in a conflict over whether dangerous mistakes are being made in A.I. training.
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At a whopping 728 feet wide, the newfound basin hints at the risks that impact events may pose to planned human outposts.
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His “The Eat-a-Bug Cookbook” made a case for insects as food, while his boisterous cooking demonstrations brought tarantulas and crickets to TV.
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Democrats and Republicans in Congress opposed the creation of a commission with the power to veto federal research awards.
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Chris Wright also doubled down on his criticism of renewable energy sources like solar power.
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As Xi Jinping visits President Trump in Washington, his country lags behind the United States on A.I. development in key areas — but Beijing has advantages elsewhere.
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The head of the company hoping to become the first to conduct commercial deep-sea mining said mines on land had a much larger environmental footprint.
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Energy Secretary Chris Wright is pitching a future of fossil fuel abundance. It’s not always an easy sell while war drags on and oil prices surge.
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Suicide deaths have often fluctuated over the years but a sustained downward trend remains elusive.
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The lawsuit, filed by Michigan, claimed oil companies colluded to obstruct solar power and to misrepresent climate risks, making energy costlier.
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Less than a year ago, Gov. Greg Abbott welcomed data centers. Now he is confronting concerns about the projects even among fellow Republicans.
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A group of civil-rights and free-speech lawyers accused the judge of bias and “general incompetence.”
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The ruling clears a path for a land swap deal that would expand Elon Musk’s Starbase launch site in South Texas.
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Federal officials are drafting an executive order that would place grants under review by an outside panel, the latest effort to redirect billions of dollars in research spending.
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They scanned the pattern of microscopic imperfections on an ancient limestone slab, and used A.I. to figure out how a game might have been played.
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A bipartisan group in Congress and Gov. Gavin Newsom of California have floated ideas for building a mechanism that would instantly power down an A.I. system. Only no one really knows how.
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Maintenance projects have been put off around the country and resources diverted to the president’s favored projects in Washington.
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Dog behavior experts offered a variety of explanations for why Nash the golden retriever wagged his tail and carried a toy near a man who broke into his owner’s home.
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The species, called a tilcayo, is smaller than a house cat and lives in the cloud forests of the Andes Mountains in Bolivia.
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Nearly 1,000 readers sent us their questions about artificial intelligence, its potential and its potential risks.
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The discovery of “hypersoft” X-ray beacons could help solve some mysteries about the universe.
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The Democratic candidate for governor backed restrictions on disposal of fracking wastewater around a hard-hit town, and called for a “thorough investigation” of the dangers.
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The gene is found predominantly in Southern Appalachia and may be one of the most powerful cancer-risk mutations ever found.
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“Alignment” is the science of teaching A.I. to do what is in line with human preferences, ethics and judgment. But, at times, the systems have gone rogue.
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Scientists have discovered a powerful gene-targeting system in viruses. Billions of years old, VIPR seems to predate CRISPR and may be even more effective.
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It’s the only example of a dinosaur-era feather found within rock that wasn’t completely flattened through the centuries.
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The European Organization for Nuclear Research, or CERN, will dismantle the Large Hadron Collider, which helped discover the so-called God Particle, in order to build a more powerful particle accelerator.
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Rising temperatures contributed to the disaster by destabilizing the permafrost and ice around the collapsed rock, scientists concluded.
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An internal memo reinterprets the law so that only the intentional killing of animals, not collateral harm, is illegal.
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Surging drug use has contributed to an epidemic in the Pacific island nation, where one in 60 adults is estimated to be living with the virus.
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