Six NASA-backed research subjects who have been cooped up in a Mars-like habitat on a remote Hawaii volcano since January emerged from isolation Sunday. They devoured fresh-picked tropical fruits and fluffy egg strata after eating mostly freeze-dried food while in isolation and some vegetables ...

For more than a decade, NASA's Cassini spacecraft at Saturn took "a magnifying glass" to the enchanting planet, its moons and rings. Cassini revealed wet, exotic worlds that might harbor life: the moons Enceladus and Titan. It unveiled moonlets embedded in the rings. It also ...

NASA's Cassini spacecraft is getting a grand but hilarious opera send-off before it plunges through Saturn's atmosphere and vaporizes Friday. An actor from TV's old "Star Trek: Voyager" series, Robert Picardo, said he dashed off the lyrics in about a minute, several weeks ago. He ...

After a 20-year voyage, NASA's Cassini spacecraft is poised to dive into Saturn this week to become forever one with the exquisite planet. There’s no turning back: On Friday it will careen through the atmosphere and burn up like a meteor in the sky over ...

The largest asteroid in more than a century will whiz safely past Earth on Friday at a safe but unusually close distance of about 4.4 million miles (7 million km), NASA said. The asteroid was discovered in 1981, and is named Florence after the famed ...

Mars is buffeted by turbulent snowstorms that occur only at night, according to a study released Monday that revises our understanding of Red Planet weather. Up to now, it was thought that snow falling from low-lying Martian clouds settled slowly and sparsely to the ground ...

SpaceX is poised to launch an unmanned cargo ship toward the International Space Station Monday, including a supercomputer that could direct astronauts on future deep-space missions. The liftoff of the Falcon 9 rocket, carrying the Dragon cargo ship, is planned for 12:31 p.m. (1631 GMT) ...

A bag used by U.S. astronaut Neil Armstrong to bring the first samples of moon dust back to Earth was sold to an anonymous bidder for $1.8 million at an auction in New York on Thursday marking the 48th anniversary of the first moon ...

NASA on Wednesday released a series of stunning images of a raging storm on Jupiter, known as the Great Red Spot, snapped earlier this week as an unmanned probe zipped by. The U.S. space agency's Juno spacecraft flew over the storm late Monday, offering humanity's ...

NASA's Juno spacecraft is about to give us our best look yet of Jupiter's swirling Great Red Spot. The spacecraft flies directly above the monster storm Monday night, passing 5,600 miles (9,000 km) above the cloud tops. That's close by space standards. Juno's instruments will ...