NASA explains Pluto's newly discovered "blue sky" and whether or not potential astronauts could ever witness an Earth-like sunrise. The New Horizons space probe sent back its first color images of ...

MOUNTAIN VIEW, Calif. -- At Friday's press briefing, NASA scientists studying Pluto appeared to be giddy. What they once knew as only a yellowish blob is coming to life as a complex and fascinating ...

NASA unveiled its first false-color, close up portrait of Pluto Friday afternoon. The findings reveal a surprisingly active world filled with glaciers of nitrogen and methane ice. Another image ...

NASA’s New Horizons spacecraft sent back the last images of Pluto and Arrokoth before leaving them behind forever. This film shows the final views of these distant worlds.

For decades, Pluto remained one of the most mysterious objects in our solar system, until July 14, 2015, when NASA's New Horizons spacecraft became the first mission to visit it up close, capturing ...