Science News: Recent scientific discoveries and expert analysis

Twin orbs of superhot plasma at the Milky Way's center known as the "Fermi bubbles" contain inexplicable clouds of cold hydrogen, new research reveals. They could help scientists figure out when our galaxy's black hole last erupted.

The largest known Martian meteorite, NWA 16788, has been sold at auction for $5.3 million. The hefty chunk of the Red Planet, which weighs 54 pounds, could help unravel new secrets about Mars — if it's allowed to be studied.

New pictures taken in Yukon, Canada, show a perfectly preserved fossil skull, which experts say belonged to a male, teenage horse that lived during the last ice age.

Astrophotographers have snapped stunning shots of a giant shapeshifting solar prominence, dubbed "The Beast," which appeared over the sun's northeastern limb on July 12 and rained impossibly fast fire over our home star.

For years, it's been assumed that sloths don't fart. But new footage has thrown this theory into question.

Large flat surfaces carved by ancient rivers deep beneath the East Antarctica are influencing how ice flows across the continent today, according to a new study.

A lava-spewing fissure has opened up along Iceland's Sundhnúkur crater row as the Reykjanes peninsula experiences another volcanic eruption.

Skydweller is a solar-powered drone that can fly for up to three months without landing, with researchers hoping to one day achieve much longer flight times.

A study suggests that a single brain MRI can be used to predict a person's rate of aging across their whole body, which researchers say could change how we predict and prevent chronic disease.

Debris released from the asteroid Dimorphos during NASA's DART mission has a higher momentum and less random distribution than expected, which "changes the physics we need to consider when planning these types of missions," researchers say.

New simulations have narrowed down where the newly discovered interstellar comet 3I/ATLAS likely came from, revealing it could be more than 3 billion years older than the solar system.

The psychedelic psilocybin, found in magic mushrooms, slows certain hallmarks of aging in human cells and older mice, a lab study suggests.

Researchers have created an ultrasensitive laser the size of a penny that could improve lidar technology, boosting autonomous vehicles in the process.

A human rib discovered high in the Pyrenees suggests that someone survived a shot in the back several millennia ago.

New gravitational wave findings from the LIGO-Virgo-KAGRA Collaboration report the discovery of the largest black hole merger ever. It could lead to evidence of an extremely rare type of black hole.

Our Milky Way could have many more satellite galaxies than we've detected so far. They're just too faint to be seen.

Firefighters are battling a lightning-caused wildfire on the North Rim of the Grand Canyon. The Dragon Bravo Fire has burned down the Grand Canyon Lodge and triggered a chlorine gas leak.

A team of scientists in Japan shattered the record for the fastest internet speed by developing new fiber optics.

The thick, mineral-rich layers of clay found on Mars suggest that the Red Planet harbored potentially life-hosting environments for long stretches in the ancient past, a new study suggests.

As many as 100 "shooting stars" per hour can be visible, but a bright moon on the peak of the Perseids on Aug. 12 and 13 means evasive action is required.