As Ceres and Pluto slowly come into view, take a look back at what we thought these worlds would look like up close.
A NASA spacecraft speeding toward an epic flyby of Pluto on July 14 has beamed home its first good looks at two moons of the dwarf planet.
After more than nine years traveling through the solar system, New Horizons is now approaching its ultimate target: Pluto.
A new study suggests that at least two more planets are circling the sun far beyond Pluto’s orbit.
Fasten your seat belt and buckle your eyeballs -- 2015 should be a wild ride in space. We'll see Pluto up close for the first time EVER, zoom through the Kuiper Belt, and maybe even see black holes in detail. Ian O'Neill has his top space stories.
The spacecraft woke at 9:30 pm from its 18th hibernation period since its 3-billion-mile voyage began in January 2006.
NASA's New Horizons robotic spacecraft will get a wake-up call at 3 p.m. ET Saturday to begin preparing for a long-anticipated study of Pluto.
With a few brief exceptions, NASA's New Horizons probe has been asleep since 2006 while it zooms toward Pluto. But it's almost time for the craft to wake up and dial in on the former planet. Amy tells us what the plucky probe will be studying.
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