Man killed by lion after entering enclosure at zoo: 'The animal attacked'

A zoo guest who decided to climb a wall to enter a lion enclosure to apparently take a selfie was mauled to death by the animal Thursday, according to reports.

How NASA plans to study the sounds of the total solar eclipse

Eclipse watchers can help NASA study how the April total solar eclipse impacts wildlife and insects. The abrupt darkness can fool animals into thinking its dusk.

SpaceX launches 'Odysseus' lunar lander, aiming for historic US moon mission

SpaceX launched Intuitive Machines' Odysseus lunar lander on Thursday. The U.S. hasn't returned to the moon's surface in more than 50 years. Here’s when the touchdown attempt is planned.

These states have the most UFO sightings

Here's where people are reporting the most UFO sightings in the U.S., according to the National UFO Reporting Center.

VIDEO: Mesmerizing Florida manatee does twirls for diver

A Florida manatee put on a beautiful show for a lucky diver who caught the whole interaction on video. 

Chernobyl’s mutant wolves developing resistance to cancer, study says

Wolves in Chernobyl’s radiation zone appear to have developed a resistance to cancer after being exposed to high levels of radiation in the wake of the nuclear disaster 35 years ago, according to a new study.

Winnebago system sturgeon spearing opens, ice conditions limit crowd

The Winnebago system sturgeon spearing season opened Saturday, Feb. 10 – but ice conditions kept many spearers off the ice for the initial harvest.

Winnebago System sturgeon spearing in question, ice conditions worsen

The Winnebago System sturgeon spearing season opens Saturday, Feb. 10 – but it may be over before it even begins due to lake ice conditions.

ESA to use laser beams in space to study gravitational waves

During the LISA mission, three spacecraft will fly in formation, forming a triangle connected by laser beams to detect gravitational waves.

Where you are likely to see the April total eclipse based on cloud-cover forecasts

A total solar eclipse will happen over a large swath of the U.S. this April, but cloud cover could spoil the views for millions if the weather doesn't cooperate. That's where historical weather comes in handy.

40 years ago, he became the first one-man spacecraft

Astronaut Bruce McCandless drifted away from the space shuttle and into history. The photo of his untethered spacewalk became one of the most iconic images of the decade.

Another whale found dead at Assateague Island; offshore wind projects causing concern

Maryland state officials discovered a deceased whale off the state's Atlantic coast last week, marking the second beached whale carcass discovered in the area in three weeks.