Science

The U.S. Space Force says it set a record for sending a satellite into space on short notice – just a 24-hour timeframe, instead of weeks or months – calling it a "major advancement" of its capabilities.

Scientists at the Environmental Working Group found that fragrance-free “green” cleaning products produced the least amount of hazardous chemicals on average.

NASA Administrator Bill Nelson said the agency wants to shift the conversation about UFOs “from sensationalism to science.”

Located about 120 light-years from Earth in the constellation Leo, K2-18 b lies within the habitable zone of a nearby star.

In a dramatic rescue in Alaska, a lost hiker was saved thanks to the vigilance of viewers who spotted him on a bear webcam.

NASA's report on UAPs — short for unexplained anomalous phenomena — has been in the works for more than a year.

Jaime Maussan presented two alleged alien corpses in windowed boxes. He told Mexico's Congress "we are not alone in this vast universe."

Next month’s eclipse isn’t as rare as the total solar eclipse set to sweep the country next spring, but it will still be a sight to see for millions of people. Here's what to expect.

The Mars Oxygen In-Situ Resource Utilization Experiment, or MOXIE, is a microwave-sized device that takes unbreathable Martian air and turns it into oxygen humans – and dogs – rely on.

NASA astronaut Frank Rubio now holds the record for the longest U.S. spaceflight. Rubio surpassed the U.S. record of 355 days on Monday at the International Space Station.

Star Wars enthusiasts have a unique opportunity as a historic relic from the iconic franchise, the "Red Leader" X-wing Starfighter filming miniature, is set to be auctioned by Heritage Auctions.

SpaceX has to implement corrective actions for the FAA to issue a license modification for the next launch attempt. Elon Musk's company is busy making changes to Starship and the Texas launch facility since the April test flight.

The rhino killed the zookeeper and seriously injured another zookeeper, her husband, as he tried to chase the rhino away from her.

Officials have closed part of the Custer Gallatin National Forest in southwestern Montana after a hunter was severely mauled by a grizzly bear.