Rocks found by NASA's Mars rover offer strongest hints yet of past life

Rocks found on Mars may provide the strongest evidence yet of past life on the Red Planet, but more testing is needed to back up those findings.

Why are coyotes swimming to Angel Island?

An unusual sighting was caught on video – a coyote swimming in the San Francisco Bay on its way to Angel Island.

Hikers on psychedelic mushrooms rescued after getting lost in NY mountains

A hiking trip took a “trippy" turn that ended with a group having to be rescued from a popular mountain destination in New York State last month.

Arkansas man, 72, mauled by 70-pound bear

The man suffered extensive injuries to his face and upper body before being airlifted to a hospital.

Man dies in shark attack at Sydney beach

A man in his 50s was killed by a large shark while surfing at a beach near Sydney, Australia on Saturday.

Total lunar eclipse coinciding with this weekend’s full moon

This month’s full moon coincides with a lunar eclipse – but it unfolds on the opposite side of the world Sunday night and early Monday.

Escaped bulls make their way onto KTVU's Roberta Gonzales' East Bay front yard

It was an unusual sight on Friday morning for KTVU Meteorologist Roberta Gonzales, who woke up to a couple of escaped bulls in her Livermore front yard.

Northern Lights possible in Midwest, northern US on Labor Day

An eruption of charged material from the Sun will create vivid displays of Northern Lights as far south as the Midwest on Labor Day, according to NOAA’s Space Weather Prediction Center.

See it: Photos show glowing baby planet outside of our solar system

Astronomers have, for the first time, detected a planet growing inside a cleared gap of a protoplanetary disk, confirming long-held theories about how young planets shape their star systems.

Wildlife Photographer of the Year sneak peek: See the stunning photos

A dramatic stand-off between a lion and a cobra. A lone elephant wading through a landfill in Sri Lanka. Here's a sneak peek at the Wildlife Photographer of the Year's top photos.

Watch: Video shows rare fish's ability to climb rocks

The tiny fish were seen swimming, or rather "climbing" up rocks, a behavior that hadn't been seen before.

Bay Area flying car company begins operations at two airports

The Bay Area aeronautics company behind what it’s calling "the first true flying car in history" announced Tuesday that it will begin operations out of two airports. 

Sea lion colony shuts down popular California beach

A colony of sea lions has taken over a popular beach and tourist destination in Monterey, prompting a public safety notice and the beach’s closure.   

See the clearest photo yet from the surface of Mars

NASA says its Perseverance rover on Mars has transmitted new imagery that forms one of the sharpest panoramas of the Martian surface to date, offering scientists valuable insight into the Red Planet’s terrain.

Toothpaste made from hair could help repair teeth, scientists say

Researchers at King’s College London say keratin, a protein found in hair, can protect and repair tooth enamel — and may soon be used in toothpaste or gels.