Scientists have discovered what they say is the earliest known rock art, in a cave in Indonesia. They say the image dates to more than 67,000 years ago.

Blue Origin, owned by billionaire Jeff Bezos, says it's stopping human spaceflights for at least two years. The move will allow it to "shift resources" to the company's lunar landing capabilities.

Strong winds can make it feel a lot colder than the thermometer suggests. Protect yourself by covering exposed skin and sheltering inside.

Humpback whales will sometimes use an intricate strategy to catch food called bubble-net feeding. A new study suggests they're spreading the knowledge of how to do it to each other.

The wind chill in Easton, Pennsylvania, was below zero on Wednesday.

On Jan. 28, 1986, the Space Shuttle Challenger exploded 73 seconds after takeoff. All seven crewmembers on board were killed.

Researchers discovered a feedback loop between nerve cells, the immune system and the heart. They think it shows promise as a target for future therapies.

The winter storm left a record number of people in Nashville without power.

Freezing temperatures and heavy snow and ice hit a large portion of the United States over the weekend.

Freezing rain and sleet are weighing down trees, which are now toppling and wreaking havoc.