"The discovery signals a potentially habitable environment in the ocean of Europa," according to the Webb Space Telescope's website.

Frank Rubio's first mission broke the record for longest U.S. spaceflight last week. The medical doctor is a lieutenant colonel in the U.S. Army and served as a Blackhawk helicopter pilot.

A new image from NASA's James Webb Space Telescope reveals what Earth's sun could have looked like in its infancy.

NASA is releasing a new report from advisers on what it would take for the agency to study unidentified anomalous phenomena (also known as UFOs) scientifically.

A newly discovered green comet is zipping by Earth and is now visible for the first time since before Galileo invented his telescope.

The United Arab Emirates celebrated after Emirati astronaut Sultan Alneyadi splashed down to Earth following six months in space, a milestone for its growing space program.

The telescope will measure the speed and makeup of what lies between galaxies, information to help study how celestial objects were formed.

The four-member crew — three astronauts and a cosmonaut — launched in March and conducted more than 200 experiments. They also performed spacewalks and did maintenance on the orbiting outpost.

There was no word on the outcome of the rover searches for signs of frozen water on the lunar surface that could help future astronaut missions.

In the massively-anticipated game Starfield, space exploration is its own reward. Good thing too, because the slow storyline isn't the star of the show.

The Earth's lunar sidekick will appear extra big and bright as it reaches its fullest stage on Wednesday. It's not just the biggest supermoon this year, it's also a rare blue supermoon.

The four members of the Crew-7 mission are set to dock to the International Space Station on Sunday. They'll spend six months on the orbiting outpost conducting science and other experiments.

Scientists believe the south pole region might hold frozen water that could help future astronaut missions.

Russia's unmanned robot lander crashed after it had spun into uncontrolled orbit, the country's space agency Roscosmos reported.

India and Russia are sending landers to spots near the south pole, which has water ice that might one day be mined to make rocket fuel.