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Since touching down in Jezero Crater, NASA's Perseverance rover has already cached 6 samples that could one day be brought back to Earth. Astrobiologists hope they hold signs of past microbial life.

Grilling usually involves burning fossil fuel. But some manufacturers are offering electric grills and citing climate change and convenience as reasons to switch.

The National Institutes of Health, the crown jewel of biomedical research in the U.S., could face big changes under the new Trump administration, some fueled by pandemic-era criticisms of the agency.

Jack DeJohnette, of the most daring and singular jazz drummers of the last 60 years, died on Sunday.

Trump has repeated debunked claims that Afrikaners are facing a "white genocide" in South Africa. Critics say the false statements are causing conflict in a country still recovering from apartheid.

As protests grow over violent ICE enforcement actions in Minneapolis, the president said he could invoke a centuries-old law that would give him sweeping powers to deploy the military in U.S. cities.

The Trump administration is withdrawing from 66 global groups, including U.N. entities that focus on climate and health issues.

He declared all of Lake's actions over the past year to be null and void, including the layoffs of more than 1,000 journalists and staffers.

Technology allowed the U.S. and Israel to kill Iran's Supreme Leader, but raised longstanding questions about whether the U.S. as a democracy should be assassinating foreign leaders.

Birds and wasps do it. So do octopuses, otters, polar bears and dolphins. A surprising number of animals use tools, and scientists say there are some widespread misconceptions. Among them: Using tools isn't a sign of intelligence, and animals don't need fingers to be crafty with tools.