It took over nine years for New Horizons to reach Pluto after blasting off atop an Atlas 5 rocket on Jan. 19, 2006. After ...

It was one of the most ambitious missions for NASA since the turn of the century, with photos reshaping what scientists know ...

Over the past decade, researchers have been puzzling through Pluto’s mysteries. Meanwhile, the New Horizons probe heads for interstellar space.

NASA’s New Horizons probe, which hurtled past Pluto in 2015, demonstrates that it can sail through interstellar space using ...

What processes during the formation of Pluto's largest moon, Charon, potentially led to it having cryovolcanism, and even an ...

Pluto will reach its closest approach to Earth and align opposite the Sun on July 25, appearing slightly brighter (magnitude ...

Pluto at Last Nine years after leaving Earth, New Horizons closes in on the last of the Original Nine planets, and whatever lies beyond.

“We also find an approximately 0.3 percent chance that Mars will be lost through collision or ejection and an approximately 0.2 percent probability that Earth will be involved in a planetary collision ...

Sedna will make its closest approach to the Sun in 2076, giving us a rare opportunity to visit the planetoid before it drifts ...

What Are Superman’s Powers? From heat vision to planet-punching strength, here’s a grounded breakdown of what makes him super. Let’s clear something up right away: Superman doesn’t “just fly.” He ...

Pluto was long considered our ninth planet, but the International Astronomical Union reclassified Pluto as a dwarf planet in ...

A day on Earth is defined as the time the planet takes to complete one full rotation on its axis – roughly 86,400 seconds, or ...