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Nearly 900 years ago, astronomers spotted a strange, bright light in the sky. We finally know what caused it.In the 12th century, Chinese and Japanese astronomers spotted a supernova in the sky shining as brightly as Saturn.
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Human remains found inside 500-pound alligator. How common are alligator attacks?An enormous alligator is suspected of killing a man in Louisiana, according to news reports.
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Pfizer & BioNTech will soon seek approval for COVID-19 vaccine in young childrenThe youngest age that a person can get a COVID-19 vaccine is 12. That may change soon.
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Smoke sets off alarms on the International Space StationAlarms blared aboard the Russian side of the International Space Station (ISS) early Thursday (Sept. 9), and the crew reported seeing smoke and smelling burnt plastic, according to news reports.
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This Australian bird's cry sounds just like a human babyA brown, long-tailed bird at the Taronga Zoo Sydney in Australia has learned how to mimic the shrieks and shrills of human babies.
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Huge, gold-standard study shows unequivocally that surgical masks work to reduce coronavirus spreadResults from a massive study in Bangladesh unequivocally show that surgical masks reduce the spread of SARS-CoV-2, scientists say.
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Man can change his pupil size on command, once thought an impossible featA 23-year-old student in Germany can shrink and enlarge his pupils on demand, according to a new case report — a feat that was previously thought to be impossible.
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Newly discovered island is the closest land to the North PoleIn July, a group of scientists accidentally found themselves on a tiny island in northern Greenland made up of mounds of silt and gravel. It turned out to be an unknown island.
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Massive iceberg narrowly avoided collision with Antarctic ice shelfA-74 nearly collided with the ice shelf it split from last February. Such a strong impact may have released an even larger iceberg.
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Johnson & Johnson booster shot increases antibodies to coronavirus nine-fold, company saysPeople who received a booster Johnson & Johnson COVID-19 vaccine six to eight months after their initial dose had a nine-fold increase in antibodies, according to clinical trial results.
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FDA grants full approval for Pfizer-BioNTech coronavirus vaccineThe Food and Drug Administration granted full approval to Pfizer-BioNTech's COVID-19 vaccine on Monday (Aug.23). It's the first COVID-19 vaccine in the U.S. to be fully approved.
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California family found dead on trail had 'no obvious cause of death.' Could toxic algae be responsible?Investigators are considering the possibility that the couple, their one-year-old daughter and their dog were exposed to toxic algae.
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Lab-made mini brains grow their own sets of 'eyes'A group of scientists has grown mini brains that have something their real counterparts do not: a set of eye-like structures called "optic cups" that give rise to the retina
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US to recommend COVID-19 vaccine booster shots 8 months post-vaccinationU.S. health officials are expected to recommend that people receive an additional COVID-19 vaccine dose eight months after their second dose.
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Three volcanoes erupt at the same time in Alaska, in rare phenomenaThree volcanoes in Alaska's Aleutian islands are erupting simultaneously, but are currently not a threat to local communities.
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COVID-19 could mix up body's 'fight-or-flight' systemThere's still much that’s unknown about the subtle impacts a typical COVID-19 infection may have on the body and the nervous system.
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Here's what you need to know about COVID-19 breakthrough infectionsThe COVID-19 vaccines that are used in the U.S. are highly effective. But sometimes, the coronavirus can still infect people who are vaccinated, causing so-called breakthrough infections.
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FDA to authorize 3rd COVID-19 vaccine dose for immunocompromised peopleThe FDA is planning to update the emergency use authorizations for Pfizer and Moderna's COVID-19 vaccines to include a third dose for immunocompromised people.
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Wildfire prompts evacuation at Turkey power plantTurkey continues to battle dozens of intense wildfires that have now killed eight people and countless animals.
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Vaccines cut chance of being infected with delta variant by half, UK study findsThe study examined nearly 100,000 people who took COVID-19 swab tests at home between June 24 and July 12.
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Dogs know when humans are lying to themResearchers found that dogs react differently to false information given to them by a misinformed human than they do to a human who is flat-out lying to them.
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NYC will require COVID-19 vaccination proof for indoor dining, gymsNew York City will become the first city in the U.S. to require proof of vaccination for such activities.
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'The war has changed,' against new delta variant, internal CDC presentation saysThe coronavirus delta variant may be as contagious as chickenpox and cause more severe illness than previous variants, CDC says.
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Strange DNA 'borgs' discovered in CaliforniaIt's not totally clear what these massive strings of DNA do, but they may help supercharge the organisms' ability to break down chemicals in the soil.
