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The Latest Breaking News from LiveScience

'Tour de force' study may explain why trauma can lead to PTSD

Stress can shape how memories are formed, a study in mice suggests. The findings could point the way to future treatments for PTSD and anxiety.

LiveScience

Meteorite found in a drawer at university contains 700-million-year-old evidence of water on Mars

The Lafayette meteorite was discovered in a drawer at Purdue University in 1931, with no clear indication of how it got there. A new analysis of the rock reveals evidence of liquid water on Mars 742 million years ago.

LiveScience

Severe COVID-19 may shrink cancer tumors, early data suggest

Immune cells produced during severe COVID-19 infection may shrink tumors. The unexpected mechanism offers a new therapeutic possibility for advanced and treatment-resistant cancers.

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35,000-year-old saber-toothed kitten with preserved whiskers pulled from permafrost in Siberia

Researchers have analyzed mummified remains pulled from Siberia's permafrost in 2020 and determined they belong to a 3-week-old saber-toothed kitten that died at least 35,000 years ago.

LiveScience

'Another piece of the puzzle': Antarctica's 1st-ever amber fossil sheds light on dinosaur-era rainforest that covered South Pole 90 million years ago

Until now, Antarctica was the only continent on Earth without any known amber fossils. But sediment cores taken from below the seafloor have revealed a tiny piece of fossilized resin holding fragments of an ancient rainforest that covered the South Pole during the Cretaceous period.

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Mass child sacrifices in 15th-century Mexico were a desperate attempt to appease rain god and end devastating drought

The sacrifice of at least 42 children in Tenochtitlán, now Mexico City, was an effort to calm the anger of the Aztec rain god during a devastating drought, researchers have revealed.

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World's biggest coral — so big it can be seen from space — discovered by chance off Solomon Islands

The world's biggest coral — an organism made up of about a billion polyps — is about three times bigger than the previous record-holder and was discovered by chance during an expedition off the Solomon Islands.

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'It invites us to reconsider our notion of shadow': Laser beams can actually cast their own shadows, scientists discover

After discussing the quirks in 3D modeling software, where a laser beam is treated as a solid object that can cast a shadow, scientists decided to experiment in real life — and found that laser beams can indeed cast a shadow under the right conditions.

LiveScience

El Ojo: The mysterious floating island in Argentina's swampland that looks like a perfectly round eye

Argentina's El Ojo is said to harbor UFOs and the ghosts of ancient deities, but as far as scientists can tell, the island is simply a fluke of nature that formed through erosion and water currents.

LiveScience

Rare gladiator-shaped knife handle discovered by Hadrian's Wall

It's rare to find gladiator memorabilia from Roman Britain, but archaeologists by Hadrian's Wall have just found a 2,000-year-old knife handle depicting a left-handed fighter.

LiveScience

Declassified spy satellite images reveal 1,400-year-old battle site in Iraq that set off the Muslim conquest

Historical texts that mentioned details about the battle site helped researchers match the images to the lost town of al-Qadisiyyah.

LiveScience

'The bottom line is, I told you so': JWST observations upend standard model of how galaxies form, new study claims

The James Webb Space Telescope's discovery of unusually bright and massive galaxies soon after the Big Bang has cast doubt on the standard model of galaxy evolution and bolstered a rival theory for how physics may work on large scales, according to a team of astronomers.

LiveScience

James Webb Space Telescope discovers mysterious 'red monster' galaxies so large they shouldn't exist

The James Webb telescope has spotted three gigantic "red monster" galaxies that were spawned soon after the Big Bang. They're so large they could rewrite the laws of galactic evolution.

LiveScience

It would be easier to find aliens in a parallel universe than in our own, new multiverse study claims

A new model based on the famous alien-hunting Drake equation suggests that some parallel universes within the hypothetical "multiverse" could have higher chances of containing extraterrestrial life than our universe.

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Teen sickened with Canada's first human case of bird flu is in critical condition — and the source remains a mystery

A teenager in Canada is critically ill with the country's first human case of H5N1 bird flu. Health officials aren't sure how the youth was exposed.

LiveScience

'Edge of chaos' neuroscience theory could lead to superfast computing chips that behave like superconductors

By tapping into the enigmatic theory of how neurons transmit signals, scientists have proven they can one day build computer chips with near-zero electrical resistance.

LiveScience

Necrotizing fasciitis: The 'flesh-eating' infection that bores holes in the body

Necrotizing fasciitis is a rare, life-threatening illness caused by bacteria that aggressively attack the soft tissue of the body.

LiveScience

We've been wrong about Uranus for nearly 40 years, new analysis of Voyager 2 data reveals

Voyager 2's 1986 flyby of Uranus, the main source of our knowledge of the icy planet, could have come at the same time as a weird plasma burst from the sun.

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Diagnostic dilemma — Unusual case reports from the medical literature

Doctors write case reports to help call rare conditions to the attention of their peers, or to highlight patients whose diagnoses ended up being a bit of a puzzle. Case reports can shed light on emerging trends, hinting at when a condition might be becoming more common. They can also…

LiveScience

12,000-year-old, doughnut-shaped pebbles may be early evidence of the wheel

The wheel was likely invented around 6,000 years ago, but a new analysis of curious rocks from Israel suggests that wheel-like technologies existed even earlier.

LiveScience

Why is Pluto not considered a planet?

Pluto was demoted from a planet to a dwarf planet in 2006. So why is its status still so controversial today?

LiveScience

24 brain networks kick in when you watch movies, study finds

Researchers created the most detailed map of the brain's functional networks using data from people watching movies, including "Inception," "Home Alone" and "Erin Brokovich."

LiveScience

Mammoth quiz: Test your knowledge of the ice age beasts

Most of us are familiar with the mammoths in "Ice Age," but how much do you really know about these creatures? Find out by taking our quiz.

LiveScience

Smarter dogs have smaller brains, surprising study reveals

A study looking at the brain size of different breeds relative to their skulls reveals how humans have altered the species through artificial selection.

LiveScience

'Medieval' King Arthur site is 4,000 years older than we thought

The discovery suggests the mysterious "King Arthur's Hall" in England is older than Stonehenge.

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