What did NASA’s New Horizons find around Pluto? This groundbreaking mission unveiled a world of surprisWhat did NASA’s New ...

Pluto may have been downgraded from full-planet status, but that doesn't mean it doesn't hold a special place in scientist's ...

Mapping Pluto Broken Heart | This image was taken by the New Horizons Long Range Reconnaissance Imager (LORRI) on the morning ...

It must have cleared all other celestial bodies, except its own moons, from its orbit.

In the time Pluto was found, classified as a planet and reclassified as a dwarf planet, it has not completed one orbit. One ...

The 47-year-old Voyager 1 spacecraft is back in touch with NASA — but not out of the woods ... and particles that extends well beyond Pluto’s orbit — where its instruments directly ...

Things have been a mess since Pluto's demotion. In 2006, the International Astronomical Union (IAU) voted on the definition of a planet. Famously, Pluto no longer met the criteria and was demoted ...

This color-enhanced photo shows the tan-colored western lobe of Pluto’s heart, which is known as Tombaugh Regio. NASA / JHUAPL / SwRI Looking at a New Horizons photo of Pluto, anyone would be ...

Earth’s orbit around the Sun is not circular, but an ellipse. The perimeter of Earth’s orbit is roughly 584 million miles ...

The changing faces of Pluto| The predominant color of Pluto's surface is thought to result from ultraviolet radiation from the distant Sun breaking down methane on the planet's surface, leaving a dark ...

When the International Astronomical Union (IAU) demoted Pluto from a planet to a dwarf planet in 2006, it surprised a lot of people, including some scientists. Even many years later, some ...