Sheriff suspects grizzly bear killed Montana hiker

The victim was identified as Craig Clouatre, 40, of Livingston. No details were provided on where he was found or why a grizzly bear was believed responsible for his death.

Microplastics found in human blood for the 1st time, study says

Microplastics have been found in our food, drinks and even in human placentas. Now, researchers say they have found the first-ever evidence of microplastics in human blood.

Satellite images show New York-sized ice shelf collapse in East Antarctica

Scientists are concerned because an ice shelf the size of New York City collapsed in East Antarctica, an area that had long been thought to be stable.

After 4 months and 160,000 pounds of lettuce, Florida plans to wind down manatee feeding program

A pilot feeding program designed to reduce starvation issues amongst Florida manatees will soon conclude as experts say warmer waters are helping to disperse the population to their summer habitats, lessening the strain on natural resources.

VIDEO: Mountain lion runs around busy shopping plaza in Irvine

Irvine Police had what they called a "purr-ty scary situation" earlier this week, as a mountain lion led officers on a chase through a local shopping center.

Parts of Milky Way are older than expected, astronomers say

There are parts of the galaxy that are believed to be two billion years older than previously thought, according to the European Space Agency.

NASA confirms a big milestone for planetary discovery: 5,000 exoplanets

“There are many more planets in our galaxy we haven't found yet, as many as 100 to 200 billion. It's mind-blowing,” the lead scientist said.

SpaceX's new Dragon capsule named 'Freedom'

SpaceX's Crew-4 will launch to the International Space Station (ISS) in April aboard a Dragon capsule named "Freedom." 

Virginia-born astronaut to ride Russian spacecraft home amid tensions

U.S. astronaut and Fairfax County native Mark Vande Hei has made it through nearly a year in space, but faces what could be his trickiest assignment yet: riding a Russian capsule back to Earth in the midst of deepening tensions between the countries.

A wet dress rehearsal for a rocket? NASA prepares Artemis I for final test

Before any performance, whether a school play or a Broadway production, there is a dress rehearsal – usually many rehearsals – before opening night. The same goes for NASA's new moon rocket.

Man finds 'extremely rare' pink grasshopper in Texas

"I looked it up and saw that it was extremely rare. After that, I couldn't sleep, I was just in my head all night thinking about how I just let it go."

Gray whales give tour group 'most epic' encounter off Southern California coast

Two giant gray whales stopped to explore a tour boat off the coast of Newport Beach, California, giving the whale watching group an unforgettable experience.

China Eastern Boeing 737 plane crashes with 132 aboard in Guangxi province

The Boeing 737-800 plane, operated by China Eastern Airlines, crashed in China’s southern province of Guangxi with 132 people on board, officials said.

NASA image depicts historic debris cloud from clash of celestial bodies

NASA has shared an image depicting what researchers say is the first observation of a debris cloud from a massive celestial collision.

Pete Davidson no longer going to space on Blue Origin flight, company says

Pete Davidson is no longer going to the edge of space on Jeff Bezos’ Blue Origin rocket after the launch was delayed, the company said.

Spirits of past space shuttles to help boost new moon rocket

As NASA’s giant moon rocket rolls to the launch pad for the first time, some pieces of space shuttle history are riding along with it. The SLS rocket’s engines and boosters powered each of the shuttles through the years, all the way back to Columbia.