At 7:49 a.m. ET on Tuesday, NASA celebrated a monumental moment in history: The space agency's New Horizons spacecraft completed its nearly 10-year mission to Pluto. New Horizons was the first ...

NASA's New Horizons spacecraft is just days out from its historic flyby of Pluto, and it's carrying something oddly poetic on board. Astronomer Clyde Tombaugh discovered Pluto in 1930. When he died 67 ...

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 ...

WASHINGTON – There’s a chaotic dance going on at the far end of our solar system, involving Pluto and five of its closest friends, a new study finds. Hubble Space Telescope images of Pluto, its ...

The latest pictures of Pluto show it to have a beautiful blue-tinged atmosphere. And analysis of the scientific data sent back by the New Horizons spacecraft so far indicates that it has one of the ...

There's a chaotic dance going on at the far end of our solar system, involving Pluto and five of its closest friends, a new study finds. Hubble Space Telescope images of Pluto, its largest moon Charon ...

The first close-ups of Pluto and Charon from the New Horizons spacecraft's historic flyby yesterday have revealed some surprises, NASA scientists said today. New images of Pluto and its moons Charon ...

The data suggests that the Pluto's surface was formed no more than 100 million years ago - a mere youngster in a 4.56-billion-year-old solar system. WASHINGTON: NASA's New Horizons probe has ...

Earth has a newly-discovered neighbor in the solar system. But the heavenly body – possibly a dwarf planet à la Pluto – isn't a frequent visitor. Located beyond Neptune, its extreme orbit ...

With New Horizons' flyby of Pluto, spacecraft launched by humans have now visited the nine biggest planets (dwarf or otherwise) orbiting the sun. Publications such as the New York Times have called ...