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An asteroid could hit Earth in 7 years. Here's how astronomers are tracking it

Over the next several weeks, astronomers will be looking closely at an asteroid called 2024 YR4 that could be as big as a football field as they try to determine how likely it is to strike Earth in 2032.

Part of a graph shows the evolution of pesticide-susceptible bugs after a genetic drive is introduced to the population in this undated graphic.

Engineering could help insecticides keep pests under control

Pesticide resistant insects are a big problem in the farm field.

A screenshot of the AI-generated "Daisy" — a new program launched by British phone company O2 to combat phone scams.

A phone company developed an AI 'granny' to beat scammers at their own game

The company behind the scam-baiting granny said the AI technology can keep scammers on the phone for 40 minutes at a time, keeping them away from real people.

What we know about Luigi Mangione, the suspect in UnitedHealthcare CEO's killing

Manhattan prosecutors filed murder and other charges against Luigi Mangione Monday night. Earlier in the day Mangione was arraigned on firearms and forgery charges in Pennsylvania after his arrest.

Ancient Celtic tribe had women at its social center

Ancient DNA reveals that during the Iron Age, women in ancient Celtic societies were at the center of their social networks — unlike previous eras of prehistory.

Chinese social media app Xiaohongshu, called RedNote in English, is attracting scores of Americans ahead of TikTok's potential shutdown in the U.S.

What to know about RedNote, the Chinese app that American TikTokkers are flooding

With TikTok's days in the U.S. likely numbered, many American users are moving to another Chinese social media app: RedNote, a heavily censored platform similar to Instagram. Here's what to know.

Don Cameron, the Vice President and General Manager of Terranova Ranch, stands near the canal on the ranch on Feb 21, 2025. Cameron has installed several miles of canals, headgates, and pump systems to bring more water to his Terranova Ranch from the Kings River during floods. Photo by Larry Valenzuela, CalMatters/CatchLight Local

Even in wet years, wells are still dry. Why replenishing California’s groundwater is painfully slow

The governor vowed to clear the way for more groundwater recharge. Has it worked? “We’re still tinkering around with small numbers,” one expert says.

Mark Zuckerberg wears a pair of Orion AR glasses during the Meta Connect conference on Sept. 25, 2024, in Menlo Park, Calif.

Zuckerberg dines with Trump in Mar-a-Lago

A spokesperson for Meta confirmed that Zuckerberg and Trump met on Wednesday, saying he was invited for dinner with the president-elect to talk about the incoming administration.

A photo collage illustration with various pink colors and textures of a cellphone cut up in pieces in between a cut-up pink locker with two gray lockers on each side.

More California schools are banning smartphones, but kids keep bringing them

Schools that banned phones a few years ago have advice for other districts as the governor calls for a crackdown.

Under a deal being negotiated by the White House, the app's algorithm, data collection and software updates will be overseen by Oracle.

Exclusive: White House in talks to have Oracle and U.S. investors take over TikTok

The aim is to place oversight control in the hands of American software company Oracle and other investors. Under federal law, TikTok must split apart from China, or face a nationwide ban.

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