The dodo, now extinct, weighed about 50 pounds, had blue and grey feathers and couldn't fly.

This Company Wants to Bring the Dodo Back From Extinction

Colossal Biosciences plans to de-extinct the dodo, but some scientists question whether it’s ethical—or even plausible

The Tongass National Forest is home to a variety of wildlife, including bald eagles, salmon, brown bears and wolves.

Alaska

U.S. Restores Protections for Alaska’s Tongass National Forest

A new federal rule restricts road construction and logging in the country’s largest national forest

Members of Western Australia's Department of Fire and Emergency Services search an 870-mile stretch of highway for a radioactive capsule believed to have fallen off a truck.

A Radioactive Capsule Is Lost in Western Australia's Desert

Exposure to the substance could cause burns and radiation sickness, authorities say

Blood donations have dropped around the United States during the Covid-19 pandemic.

More Gay and Bisexual Men Could Soon Donate Blood

Since 1985, federal blood donor restrictions have barred many men who have sex with men from participating

Some fungi can take over ants' minds, killing the host and using its body to spread spores to other victims.

The Real Zombie Fungus That Inspired HBO's 'The Last of Us'

Humans will probably never face a fungal apocalypse, but in the insect world, mind-controlling fungi can pose a serious threat

Ants don't have noses, but they detect scents using antennae atop their heads.

These Ants Were Trained to Sniff Out Cancer

In just ten minutes, an ant could learn to identify urine from mice with cancerous tumors, a new study finds

An artist's rendition of a cross-section of Earth. The innermost layer, the inner core, is a 1,500-mile-wide ball of iron.

The Spin of Earth's Inner Core May Be Changing, Scientists Say

A new study finds our planet's iron center shifts between spinning slightly faster and slightly slower than the surface—but not all experts agree

Park rangers found Toadzilla while conducting track work.

At Almost Six Pounds, ‘Toadzilla’ May Be the Largest Toad Ever Found

Captured in a national park in Australia, the cane toad was later euthanized due to the invasive animal’s threat to the environment

Moderna is one of several companies currently working on a vaccine for RSV.

Experimental RSV Vaccine Prevents Illness in Older Adults, Moderna Says

In a large clinical trial, the vaccine was 83.7 percent effective at preventing two or more symptoms of respiratory illness in people over the age of 60

The twilight sky as seen in Coonabarabran, Australia

Light Pollution Is Outshining Stars Faster Than Thought

The artificial glow threatens astronomy, migrating birds and human health

People in Chicago fishing on Lake Michigan on December 25, 2021. The new study found particularly high levels of PFAS in fish from the Great Lakes.

Freshwater Fish Contain Harmful 'Forever Chemicals'

Eating one serving of locally caught fish could equate to drinking contaminated water for a month, a new study finds

Lightning rods can protect from lightning strikes, but they can only shield nearby areas.

Scientists Guide Lightning Bolts With Lasers for the First Time

The technology could one day protect wider areas than metal lightning rods do, perhaps shielding airports and launchpads during storms

A photo of the International Space Station taken by a crewmember aboard the space shuttle orbiter Discovery in 2001. 

Space Station Astronauts to Receive New Spacecraft After Coolant Leak

The original vehicle was deemed too dangerous for a regular trip home and will only be used in an emergency

Two cars lie in a sinkhole in suburban Los Angeles on January 10. The four passengers were taken to the hospital with minor injuries. 

California Reeling From Extreme Storms With Three More on the Way

The severe weather has caused flooding, landslides, evacuations and at least 18 deaths

The satellite reentered Earth's atmosphere at 11:04 p.m. Eastern time on Sunday.

NASA Satellite Falls Back to Earth After Almost 40 Years in Space

The reentry calls attention to the mission’s success and puts a spotlight on the dangers of space debris

An old Viking ship under the Northern Lights in Iceland

Ancient DNA Reveals a Genetic History of the Viking Age

Nearly 300 ancient genomes shed light on how people migrated and genes flowed in Scandinavia

The Pantheon's dome, the largest unreinforced concrete dome in the world, is still standing despite being nearly 2,000 years old.

'Self-Healing' Concrete May Have Preserved Ancient Roman Structures

The durable material could fill its own cracks, new research suggests

A Covid-19 testing site in New York City on December 9. An estimated 27.6 percent of cases nationwide were caused by the XBB.1.5 variant this week, according to the CDC's most recent data.

What to Know About the 'Most Transmissible' Covid-19 Variant

XBB.1.5 is the fastest-spreading variant in the country, but it is not known to cause more severe illness than previous ones

People with a presciption for mifepristone will now be able to get that prescription filled at certified retail pharmacies.

Abortion Pill Can Be Sold at Pharmacies, FDA Says

The new rule could expand medication abortion access in some places

The new local celebrity of Cypress, California, perches on a rooftop.

A Rare Snowy Owl Is Captivating Southern California

How the Arctic bird ended up among palm trees remains a mystery

loading icon