People watch Thursday's volcanic eruption in Iceland. The Icelandic Meteorological Office said Friday afternoon local time that there were no more signs of eruptive activity.

Iceland Volcano Erupts Again, Cutting Off Hot Water From Towns and Spewing Fountains of Lava

This marks the third eruption since December in a region that, prior to 2021, hadn't seen volcanic activity for centuries

A house in the Beverly Crest neighborhood of Los Angeles was pushed off its foundation by a mudslide on Monday morning. No one was in the house when the mudslide occurred. Recent storms caused at least 475 mudslides in the Los Angeles area.

California Hammered by Heavy Rains, Mudslides in Devastating Atmospheric River Storms

Some areas received as much as 13 to 15 inches of rain over a five-day period as storms felled trees, destroyed homes and killed nine people

People march in Grand Rapids, Michigan, in 2021, after police in Louisville, Kentucky, killed Breonna Taylor, a Black woman, the year before. Tawanna Gordon, Taylor's cousin, leads the march.

After Police Kill Unarmed Black People, Black Americans Lose Sleep, Study Finds

New research draws a link between unequal exposure to police violence and lack of sleep for Black adults

An entire neighborhood in Tacloban, Leyte, Philippines, destroyed by Typhoon Haiyan in 2013. More than 6,500 people died during the storm, which had maximum sustained winds of 195 miles per hour. Winds of those speeds would be above the threshold for a hypothetical Category 6 for tropical cyclones proposed by researchers.

Do We Need a Category 6 Designation for Hurricanes?

Global warming is leading to more intense storms well above the threshold for Category 5 hurricanes, scientists write in a new paper

The 23 pairs of human chromosomes. People who inherit two tall X chromosomes (bottom right) are much more susceptible to autoimmune diseases than people with one X and one short Y chromosome.

Why Do Women Get More Autoimmune Diseases? Study of Mice Hints at Answers

Four in five people with an autoimmune disease are women. New research points to an RNA molecule involved in silencing one of their X chromosomes as a potential culprit

A great white shark cruises through Atlantic waters.

Fifty Years After ‘Jaws,’ We’ve Learned a Lot About Great Whites

Though sport fishing tournaments and other activities led to population declines in the 1970s and 1980s, more recent science and conservation efforts have helped the sharks rebound

A sea otter basks in the water with some kelp. Sea otter populations plummeted as they were killed for their pelts in the 18th and 19th centuries.

Hungry Sea Otters Help Prevent Erosion on California's Coast

The marine mammals, which were once hunted nearly to extinction, feed on crabs that would make the land more susceptible to erosion by digging holes in the soil and eating roots

An image from an electron microscope of Treponema pallidum, the bacteria that causes syphilis. In 2022, the number of reported cases of syphilis in the United States was the highest it has been since 1950.

Syphilis Cases in the U.S. Are the Highest Since 1950

Diagnoses of the sexually transmitted infection rose by nearly 80 percent between 2018 and 2022, according to a new report from the CDC

Spiral galaxy NGC 628, located 32 million light-years away in the constellation Pisces, as captured by the James Webb Space Telescope in near- and mid-infrared light. The red and orange spirals represent gas, while the small blue dots represent stars.

See Dazzling New Images of 19 Spiral Galaxies Captured by the James Webb Space Telescope

These detailed infrared views, which contain millions of stars, will help astronomers better understand star formation and the evolution of spiral galaxies

The shark, which researchers suggest is a newborn great white, seen off California's coast in July 2023.

'Extremely Rare' Sighting of Newborn Great White Shark Reported Off California Coast

If confirmed, the discovery could shed light on where the sharks give birth and mate, which has remained mysterious to scientists

A photo of Ingenuity taken by the Perseverance rover in April 2023. The helicopter arrived on Mars attached to Perseverance in February 2021.

NASA's Ingenuity Mars Helicopter Has Taken Its Final Flight

Originally designed for up to five flights on Mars, Ingenuity performed 72 over three years, until one of its rotor blades was damaged during landing on January 18

Casts of the ancient chewing gum pieces, which were found in Sweden and date to between 9,540 and 9,890 years ago.

Prehistoric Chewing Gum Reveals Diet, Oral Health of Stone Age Teenagers

From preserved DNA, researchers identified which plants and animals the young people would have eaten or used for making clothing—and they found one case of a severe gum infection

The 2023 Doomsday Clock on display before a Bulletin of the Atomic Scientists event on January 24, 2023. The Bulletin has been setting the clock since 1947 based on analysis of threats facing humans from technologies people have made. 

Doomsday Clock Stays at 90 Seconds to Midnight Amid Climate Change, War and A.I.

For the second year in a row, the clock is the nearest it has ever been to signaling our total annihilation

The open canister with the sample collected from the asteroid Bennu inside. Scientists hope the sample can help them better understand planet formation and the origin of life on Earth.

NASA Finally Opens Canister Holding Asteroid Sample—See What They Found

It took several months for the researchers to remove two stuck fasteners, which required them to design new tools

People with long Covid sit in the audience at a U.S. Senate hearing about the condition on January 18.

Scientists Find Indicators in Blood Linked to Long Covid, Hinting at Future Treatments

One part of the immune system appeared to be overly active in long Covid patients in a small study, a finding researchers hope could help diagnose or treat the condition

An image of an odd radio circle called ORC 1. ORCs can be much wider across than the Milky Way galaxy and are large enough to surround entire galaxies.

Giant, 'Odd' Circles of Radio Waves in Space May Finally Have an Explanation

The mystifying orbs could be caused by galactic winds, propelled by a period of rapid star formation and death

Japan's X-ray Imaging and Spectroscopy Mission Smart Lander for Investigating Moon (SLIM) launched from Earth on September 7. SLIM took a fuel efficient route to the moon, touching down on the surface over four months later.

Japan Lands Spacecraft on the Moon

After a successful soft landing, the craft's solar cells weren't charging and it was running out of power

A picture taken by the Hubble Space Telescope that contains GN-z11, the galaxy with the newly discovered black hole at its center. When GN-z11 was first imaged, it was the farthest galaxy ever seen in the universe.

Astronomers Discover the Oldest Known Black Hole, Breaking a Record Set Last Year

The supermassive structure dates to about 400 million years after the Big Bang, and it’s particularly large for its age

A photo from a camera on one of Peregrine's payload decks shows some of the spacecraft's payloads, as well as a sliver of Earth in the upper right.

Doomed Lunar Lander Will Burn Up in Earth's Atmosphere on Thursday

Astrobotic, the company in charge of the mission, says its Peregrine spacecraft will not reach the moon, and burning it will ensure the lander doesn't end up as space debris

An artist's impression of the planet orbiting its star with the trail of gas behind it. The planet, called WASP-69b, completes one orbit in less than four days.

This Distant Exoplanet Has a 350,000-Mile-Long Tail, Like a Comet

A stream of particles flung from the planet's star is causing its atmosphere to boil away and lose 200,000 tons of mass per second

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