Pluto has not completed a single orbit since its 1930 discovery. With a 248-year journey around the Sun, the dwarf planet will finish its first full circuit in 2178.

Pluto will complete its first orbit since 1930 in 2178, a historic 248-year space journey that spans generations of humans.

Pluto may no longer be classified as a planet, but in Flagstaff, its legacy still shines. Scientists, artists and community ...

Wednesday is "Pluto Day," because – yes, of course there is a day for that. And, while celebrating the celestial object that ...

Space scientists have shown off an incredible image of a “space egg.” NASA said Tuesday the Hubble Space Telescope has revealed a dramatic interplay of light and shadow in what’s called the Egg Nebula ...

NASA's Artemis 2 moon mission has been delayed until at least March due to technical issues. A hydrogen leak was discovered in the Space Launch System rocket during a prelaunch test. A subsequent test ...

NASA Administrator Jared Isaacman speaks to employees at the Ames Research Center as part of his visits to all the agency’s field centers. Credit: X @NASAAdmin WASHINGTON — After losing about 20% of ...

The delay was caused by a hydrogen leak discovered during a key fueling test known as a wet dress rehearsal. The mission will send a crew of four astronauts, including three Americans and one Canadian ...

It's been a busy week for NASA's Artemis lunar campaign, which has experienced a number of recent setbacks as the agency has again delayed the first crewed mission under the program. The launch date ...

NASA is now targeting March for the earliest possible launch of its historic Artemis II lunar moon mission, which will send four astronauts into deep space for the first time since the Apollo program ...

A crucial test of NASA’s towering Space Launch System rocket is underway — marking one of the final steps before the vehicle launches four astronauts into deep space for the first time since the ...