Clyde Tombaugh noticed a speck of light that was Pluto in 1930. — -- Clyde Tombaugh is finally getting to visit the speck of light he spotted at the edge of the solar system in 1930. New Horizons ...

On06, NASA launched a spacecraft to Pluto! New Horizons is a spacecraft about the size of a grand piano, and it became the ...

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 ...

(MEDIA GENERAL) – As NASA spacecraft New Horizons continues its way through space, scientists and science enthusiasts have taken to social media to express their feelings on Tuesday’s historic Pluto ...

When New Horizons flew past Pluto in 2015, it revealed a surprisingly active, icy world full of unexpected landscapes, glaciers, and possible cryovolcanoes. Despite being reclassified as a dwarf ...

MOUNTAIN VIEW, Calif. -- NASA just received a signal back from New Horizons, confirming a successful first flyby of Pluto. Euphoria broke out at NASA as Pluto is now the most distant object reached by ...

A few short hours after the New Horizons spacecraft zooms by Pluto at 31,000 mph Tuesday morning, it will turn, point its radio toward Earth and -- hopefully -- check in to say everything went OK.