L.A. Times - Science

The Trump administration says it's returning U.S. science to a golden era. Critics say it's tarnished by political agendas.

A study finds that 41% of traded mammal species share at least one pathogen with humans, compared with just 6.4% of species not involved in trade.

There are several more steps NASA must take between Artemis II and a planned moon landing in 2028. Here's what the space agency expects to do before embarking on an ambitious lunar pit stop to Mars.

Weather forecasts for Los Angeles and Southern California predict rain this weekend, which could linger through Monday. There's also a 15% to 25% chance of thunderstorms.

A recycler in Vernon melted down pallets of lead-acid car batteries for a century and there is still lead in people's yards after a decade of cleanup.

The Artemis II crew slammed into the atmosphere at more than 30 times the speed of sound, creating a fireball half as hot as the surface of the sun, before splashing down safely on our home planet.

Southern Californians might hear a sonic boom as NASA's Artemis II moon mission reenters the atmosphere off the coast of San Diego Friday evening, the U.S. Geological Survey said.

Southern Californians likely won't be able to see reentry or splashdown in person, but NASA will livestream it. Here's what you should know

Speaking from space, the Artemis II astronauts described drifting past the far side of the moon, unable to communicate with Earth.

The lesson from the past is simple. When we stop using vaccines that work, the diseases they prevent come back.

Scientists find that children who live near California's Salton Sea, where dust is a problem, suffer from diminished lung development.

When Artemis II reenters earth's atmosphere, NASA will test out a new trajectory, calculated after the heat shield for its moon rocket was damaged during a test mission.

Pro Football Hall of Fame defensive tackle Steve McMichael, a key member of the Chicago Bears Super Bowl XX champion team, had CTE, a posthumous study shows.

NASA's Artemis II crew, now farther from Earth than any humans before them, are preparing for their event-filled three-hour flyby of the moon after nearly six days traveling through space.

Microplastics scientists are finding the tiny particles everywhere, even in their own research laboratories. So how do they know if what they're finding is in the sample or contamination from plastic fibers floating in the air?