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Rats that were exposed to radiation similar to what Mars-bound astronauts might face showed higher levels of scar tissue in their hearts, indicating they were more vulnerable to heart failure.
Chemical signatures found in a Brazilian dinosaur bone may be preserved red blood cells, a new study suggests, but not all experts agree.
NASA's Swift Observatory is about to make a fiery reentry through Earth's atmosphere after a private mission to save it failed. Most of the spacecraft will burn up in orbit.
A recent rat study hinted that cosmic radiation could pose health risks for future Mars explorers. Live Science asks its readers whether they'd take the journey anyway.
An American astronaut on board the ISS recently snapped a spectacular "fireball" streaking across the nighttime sky over West Africa. The striking "light show" shows a Russian rocket being vaporized as it reenters the upper atmosphere.
Rats that were exposed to radiation similar to what Mars-bound astronauts might face showed higher levels of scar tissue in their hearts, indicating they were more vulnerable to heart failure.
Chemical signatures found in a Brazilian dinosaur bone may be preserved red blood cells, a new study suggests, but not all experts agree.
Satellite radar and underground electrical scans have revealed a 2,600-year-old structure at Buto, one of ancient Egypt's most sacred cities. The real surprise wasn't the walls — but what was underneath them.
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Live Science spoke with psychiatrist Anand Kumar about the next edition of the "Diagnostic and Statistical Manual Of Mental Disorders", which will include biological factors like genetics in studying and diagnosing psychiatric conditions.
NASA's Swift Observatory is about to make a fiery reentry through Earth's atmosphere after a private mission to save it failed. Most of the spacecraft will burn up in orbit.
A recent rat study hinted that cosmic radiation could pose health risks for future Mars explorers. Live Science asks its readers whether they'd take the journey anyway.
Rats that were exposed to radiation similar to what Mars-bound astronauts might face showed higher levels of scar tissue in their hearts, indicating they were more vulnerable to heart failure.
The Cat's Head Nebula shows its ghostly insides and sinister red eye in rival views from the Hubble and James Webb space telescopes.
How did the universe transition from an impenetrable fog of hydrogen into the bright and starlit cosmos we see today? Astronomers think they're onto the answer.
Satellite radar and underground electrical scans have revealed a 2,600-year-old structure at Buto, one of ancient Egypt's most sacred cities. The real surprise wasn't the walls — but what was underneath them.
This Roman glass cup can change from jade green to ruby red, and it features a mythical king who tried to banish Dionysus.
Archaeologists have unearthed a human-shaped funeral offering that may represent an ancient Japanese priestess.
A biology student found a Native American stone spearpoint when searching for shark teeth along the coast of Virginia.
See the new facial reconstruction of a man from Roman-era Scotland who was decapitated after his death and buried near a Roman fort.
An American astronaut on board the ISS recently snapped a spectacular "fireball" streaking across the nighttime sky over West Africa. The striking "light show" shows a Russian rocket being vaporized as it reenters the upper atmosphere.
Each of Earth's hemispheres experiences summer, but how do they differ?
How to watch "Blue Planet III" online as Sir David Attenborough returns with a brand new six-part series exploring the world's oceans with new camera tech.
A 2016 satellite photo shows Hurricane Madeline and Hurricane Lester heading straight toward Hawaii's Big Island. When viewed from above, the twin cyclones and the surrounding clouds look eerily like a giant smiley face.
For the first time, researchers have identified a new type of landslide of permafrost in Canada's Northwest Territories.
Test your knowledge on all things science with our weekly, free crossword puzzle!
Live Science spoke with psychiatrist Anand Kumar about the next edition of the "Diagnostic and Statistical Manual Of Mental Disorders", which will include biological factors like genetics in studying and diagnosing psychiatric conditions.
People who had no recollection of a lucid dream over the past three years developed the skill after one month of performing a novel training regimen twice a week, neuroscientists report.
In two new surveys, U.S. adults report lying to their doctors and their children's doctors about symptoms in hopes of being prescribed antibiotics.
Colorectal cancer in young people shows genetic and structural differences that may make it more aggressive and treatment-resistant than the cancer tends to be in older people.
A new study with data from mice and human tissues suggests that, in ulcerative colitis, immune cells in the gut might make pain-sensing nerves hypersensitive.
Chemical signatures found in a Brazilian dinosaur bone may be preserved red blood cells, a new study suggests, but not all experts agree.
Blue whale sightings have fallen off dramatically near the Galápagos. El Niño may be to blame.
In his new book, "Liars, Cheats and Copycats," biologist James O'Hanlon surveys deception across the animal kingdom and asks whether any of it adds up to lying.
Writer Olivia Maule spoke with biologist James O'Hanlon about his book "Liars, Cheats and Copycats."
It seems like a simple question, but it needs serious taxonomic sleuthing. Are sharks or trees the oldest?
The PBS Nature film "Tiger Island" captures rare glimpses of tiger behavior, including a mother, father and cubs spending time together — a first for these usually solitary cats.
A new study revealed that people who rely on AI for basic tasks become less motivated over time. Live Science polled its readers on whether they have experienced this situation.
Researchers hope recursive self-improvement could tackle the skyrocketing costs of developing advanced AI models. But is it viable?
The promise of AI automation to fix the administrative problems facing universities is a fallacy. These systems will only increase the burdens of already-struggling institutions.
A new study revealed that people who rely on AI for basic tasks like math problems became less motivated over time. In response, Live Science polled its readers to see if they agree with these findings.
In a set of problem-solving experiments, researchers found that people who used AI to get answers were more likely to give up and fail when that help was removed, compared with people who did not use AI.
AI companies know they are being held hostage by each other, and that they need to take action to self-regulate before they suffer major reputational and legal consequences. There is a blueprint on how they can do it.
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A hypothetical particle could have briefly held more energy than everything else in the infant universe combined, which could help explain how matter won out over antimatter.
When does daylight saving time end in 2026? Here's when we change our clocks this fall, and why.
A new look at the uranium and heavy water used by the Nazis reveals whether they were close to making a reactor for an atomic bomb.
Einstein's theory of relativity just got put to the test by the lightest binary neutron star system ever discovered.
Atoms confined to a single line can bind into clusters called Bethe strings. A new experiment points to a mix of many such clusters, though the evidence is still indirect.
Here are the physics Nobel Prize winners.
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