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A meteor contrail is seen over Chelyabinsk, Russia on Friday, Feb. 15, 2013, in a photo taken by a mobile phone camera. The object streaked across the sky over Russia's Ural Mountains region causing a shock wave and injuring hundreds of people, including many who were hurt by broken glass.

Astronomers are tracking an asteroid that could hit Earth in 2032

The odds are about 1% that the football field-sized object could hit the Earth, but that makes it the closest call in more than 20 years.

Ice Age skull on stand in research lab at the Page Musuem at the La Brea Tar Pits in Los Angeles.

Saber teeth in predators evolved many times. Did it lead to their extinction?

A new analysis suggests saber teeth were highly specialized for puncturing prey, ultimately at the cost of durability.

Former Rep. Lee Zeldin, R-N.Y., President-elect Donald Trump's pick to head the Environmental Protection Agency, appears before the Senate Environment and Public Works Committee on Capitol Hill.

Trump's pick for EPA administrator is Lee Zeldin. Here's what to know.

Democrats worry the Trump administration will roll back efforts to limit climate change.

Fragments of a meteorite that hit a home on Prince Edward Island, Canada, in July 2024.

Canadian man's home security camera captures the sight and sound of a meteorite strike

Joe Velaidum's home security camera captured the instant a meteorite smashed against his home's brick walkway. The video is thought to be the first recorded sound of a meteorite's direct impact.

A homemade sign at a rally in Union Square in New York City on Saturday. Various hospitals across the country curbed gender-affirming care for people under 19 after President Trump's executive order.

Trump's ban on gender-affirming care for young people puts hospitals in a bind

Hospitals and clinics that have offered gender-affirming treatments to transgender youth reacted in a variety of ways to an executive order that aims to halt the care.

Created by Congress in in 1979, the department employs more than 4,000 people and has an annual budget of $79 billion.

A guide to what the U.S. Education Department does (and doesn't) do

The department tracks student achievement, manages college financial aid and sends K-12 schools money to support students with disabilities and lower-income communities, among other things.

Not too hard, not too soft, rotting fruit is just right - for fruit fly maggots

It turns out, a maggot's preference for rotting fruit has as much to do with texture as taste. Researchers are looking into figuring out why and what neurons are responsible.

Firefighters put out a hot spot at a home destroyed by the Eaton Fire, Tuesday, Jan. 14, 2025, in Altadena, Calif.

Republican Sen. Ron Johnson says fire aid to California should come with conditions

Republican Sen. Ron Johnson of Wisconsin talks about why he and many of his Republican colleagues believe fire aid for California should only come if there are some strings attached.

Yoko the baby swell shark was born on Jan. 3, some eight months after her egg was discovered in a tank with that only housed other female sharks.

This shark pup was born in a habitat without any males. How did that happen?

Yoko the swell shark was born in a habitat of all-female sharks who hadn't seen a male in years. The aquarium has two possible explanations — and hopes to get confirmation in the coming months.

A digital clock displays the time "7:23 a.m." with a bed reflected on its face. San Diego, Calif. March 9, 2023.

The psychology of dreams

On "Dreamy Edition" Monday, we take a journey through the science and psychology of sleep and dreams.

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