A pod of orcas surfaces in Alaska's Frederick Sound

Scientists Witness Orcas Kill Blue Whale for the First Time

A series of filmed attacks confirm that killer whales will attack the biggest animals on Earth

The football field-length International Space Station photographed by Expedition 56 crew members on Oct. 4, 2018.

NASA Plans to Crash the International Space Station Into the Ocean in 2031

The ISS will join other decommissioned spacecraft on the seafloor at Point Nemo, the farthest point from land in the Pacific

Scientists used satellites to get a birds-eye view of the jaw-dropping bolts.

Intense Lightning 'Megaflashes' Stretched Almost 500 Miles Across Three U.S. States

The bolts, which occurred in 2020, broke records for distance and duration

More than a third of Americans cook with gas stoves, which can emit formaldehyde, carbon monoxide, and nitric oxides.

Gas Stoves Are Worse for Climate and Health Than Previously Thought

A new study is heating up the debate over gas-powered stovetops

African clawed frogs (Xenopus laevis) were able to regrow a functional limb within 18 months of the novel treatment.

Frogs Can Regrow Lost Legs in the Lab. Now, Researchers Say Human Limb Regeneration Could Happen 'in Our Lifetime'

A 24-hour treatment using a five-drug cocktail kickstarted a yearlong regrowth process in the amphibians

Hippos may appear inactive, but a recent study shows that they’re listening closely to their surroundings.

A Hippo's Response to an Unknown Caller? A Blast of Poop and a Rowdy Holler

The lumbering animals respond calmly to their grunting and groaning friends, but a stranger's voice often prompted a loud, filthy territorial response

The SpaceX Falcon 9 rocket launched from Cape Canaveral in Florida in 2015

A Chunk of a SpaceX Rocket Is Going to Slam Into the Moon

After a chaotic orbit of 7 years, the Falcon 9 booster is predicted to crash into the lunar surface this March

Despite the species’ name, European green crabs’ color varies widely from dark brown to dark green with patches of yellow or orange.

Nearly 70,000 Invasive Green Crabs Were Captured in Washington State Last Fall

State government officials took emergency actions this month to eradicate the non-native species

The recent explosion was so powerful that it obliterated parts of the volcanic island of Hunga Tonga-Hunga Ha'apai, splitting it in two.

NASA Says Tonga Eruption Was More Powerful Than an Atomic Bomb

The recent blast was the equivalent of 4 to 18 megatons of TNT, according to scientists

Baleen whales like humpbacks use hair-like bristles in their mouth to sieve prey from the water

Scientists Discover How Whales Eat Without Choking on Water

An 'oral plug' of muscle and fat could help keep water out of the whales' lungs

The 55-faceted gemstone is believed to be the largest cut black diamond in the world.

A Huge Black Diamond, Purportedly From Outer Space, Is Now Up for Sale

The gem known as the 'Enigma' is expected to fetch around $7 million at auction, though experts are skeptical of its cosmic origin

The newly recognized species, Taksinus bambus, is the first known tarantula to nest exclusively inside bamboo stalks.

A Wildlife YouTuber Discovered This New Species of Tarantula in Thailand

The bamboo-dwelling spider is so distinct from others that it's been declared a new genus and species

NASA astronaut Tim Kopra (left) performs blood draw on European Space Agency (ESA) astronaut Tim Peake for the recent study.

Space Is Destroying Astronauts' Red Blood Cells

The discovery could complicate long-term space travel, including future Mars missions

The explosion was likely the biggest volcanic eruption recorded anywhere on the planet in more than 30 years.

Why the Eruption in Tonga Was a 'Once-in-a-Millennium' Event for the Volcano

The blast, which sent tsunami waves across the Pacific, left thousands of Tongans without access to water and power

When putting on or taking off a mask, handle it by the edges or straps to avoid contamination.

Can You Reuse a KN95 or N95 Mask? Experts Say Yes, but Follow These Steps

Regularly check for stretched-out straps, staining and soiling, which can compromise masks' ability to filter viruses like Covid-19

In the largest-ever study of horse bones to date, researchers examined equine remains from 171 unique archaeological sites including castles and medieval horse cemeteries.

The Horses of Medieval Times Weren't Much Bigger Than Modern-Day Ponies

A study of the remains of 2,000 specimens reveals the steeds were around 4 feet 10 inches tall

The gene-edited pig heart recipient, who was ineligible for a human heart transplant, is doing well three days after the surgery. 

In a First, Man Receives a Heart From a Gene-Edited Pig

The swine-to-person cardiac transplant offers hope for thousands in need of organs

Preliminary evidence suggests that rapid tests like Abbott BinaxNOW and Quidel QuickVue struggle to detect the omicron variant during an individual’s first few days of infection. 

Should You Add a Throat Swab to Your At-Home Covid-19 Test?

Mounting evidence suggests the extra step might catch Omicron infections earlier than a nasal swab alone, but the FDA warns against it

Scientists identified a link between the severity of air pollution events and the amount of land that burned in nearby regions in the preceding week.

Health Risks of Smoke and Ozone Rise in the West as Wildfires Worsen

High levels of two dangerous pollutants are occurring with increasing frequency, researchers say

Danish scientist Kristine Bohmann collects air samples in the Copenhagen Zoo’s tropical rainforest house.

Scientists Pull Animal DNA Out of Thin Air

The new method, tested at two zoos, could revolutionize the study of biodiversity in the wild

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