US plans to build nuclear reactor on the moon by 2030, NASA says

NASA and the Department of Energy (DOE) on Tuesday announced plans to develop a nuclear reactor for the surface of the moon by 2030.

Watch: Fascinating video shows plant 'breathing'

Using the new "Stomata In-Sight" tool to observe the microscopic movements of the stomata on plants, scientists can then help develop and breed crops that can grow in areas that experience more drought-like conditions.

Giraffe dies at Toronto zoo in 'sudden and tragic' accident

The Toronto Zoo is mourning the death of its 13-year-old male giraffe after an unexpected accident in its habitat on New Year’s Day.

Woman dies in suspected mountain lion attack in Colorado

Wildlife officials in Colorado are investigating a suspected mountain lion attack that left one hiker dead.

Quadrantid meteor shower peaks Friday night but bright supermoon may hinder visibility

The New Year brings a double feature celestial performance as the year’s first supermoon and Quadrantid meteor shower go head-to-head in the night skies Friday.

Pilot reports UFO beside jet, ATC jokes: 'Good luck with the aliens'

A newly resurfaced aviation audio clip shared online has drawn attention after a private pilot reported encountering a mysterious object while flying over Rhode Island.

Video: Muddy eruption at Yellowstone’s Black Diamond Pool

A muddy eruption at Yellowstone National Park was just captured on camera in an area that has been closed to the public for hazard assessments.

Blue Origin rocket launches first wheelchair user into space

Michaela Benthaus, a paraplegic engineer for the European Space Agency, became the first wheelchair user in space Saturday.

Blue Origin's historic rocket launch scrubbed Thursday

Blue Origin’s 37th New Shepard rocket launch was set to lift off Thursday from West Texas, but it was scrubbed at the last minute.