Artistic representation of the huge and slow impact on Pluto that led to the heart-shaped Sputnik ... [+] Planitia structure on its surface. Ever since NASA's New Horizons sent back the first-ever ...

According to a recent YouGov poll, 35% of Americans think Pluto is not a planet. But they are all wrong—kind of. To get to ...

Pluto seemed hopelessly cold and distant until 2015, when NASA’s New Horizons space probe beamed back images of the giant heart-shaped mark that dominates the dwarf planet’s surface.

But we have reason to believe Pluto's heart is a bit warmer than the ice the covers it. Produced by Alex Kuzoian Follow BI Video: On Facebook More from Science NASA's New Horizons spacecraft took ...

How to pack for Pluto? With girded loins, gritted teeth and a brave heart, folks. Pluto’s orbit is arduously long, with the planet changing signs once every twelve to thirty years. Pluto’s ...

Pluto — famous for being reclassified as a dwarf planet — might not have a heart of ice after all. In fact, every bit of Pluto was assumed to be frozen over considering its distance from the Sun.