Science

Grizzly bears and black bears coexist in Yellowstone, according to the National Park Service, and it's unclear which one was involved in the attack.

NASA scientists say a rock sample collected by the Perseverance rover in Jezero Crater may contain the strongest signs yet of ancient microbial life on Mars, though more analysis is needed before drawing firm conclusions.

First responders were able to locate and rescue the tourists and there were no injuries in the incident.

A dog and its owner are recovering after an alligator dragged them into a creek in Pasco County.

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.

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.

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

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.

According to the Texas Marine Mammal Stranding Network, sometimes West Indian Manatees migrate from Florida to Texas in the summer. These sightings are still rare.

Early risers have the chance to see six planets at once.

A group of scientists published a report challenging findings from a Department of Energy report that experts suggest obscure facts about climate change.

An 8-year-old boy was bitten by a shark on Monday while snorkeling off Key Largo, Florida, deputies say.

Blue dragon sea slugs' venom is very powerful, and touching one, even through gloves, can cause a painful sting.

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

An Australian surfer narrowly escaped injury after a shark bit his board in half.

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.