FLAGSTAFF — As NASA’s New Horizons spacecraft zooms ever closer to Pluto, it is sending back images that make even seasoned scientists’ eyes go wide with excitement. “Like a kid in the candy shop,” ...

Astronomers using the James Webb Space Telescope have peered into a mysterious blue haze cloaking the surface of Pluto — and discovered that it’s controlling the dwarf planet’s climate and atmosphere.

Scientists at NASA for the first time have been able to observe the make up of Pluto and other small and icy celestial bodies ...

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 ...

"This mission should be able to image the whole of Pluto. It should be phenomenal." When NASA's New Horizons spacecraft sped by Pluto in 2015, it revealed an incredible world of ice and haze carved by ...

The caldera may have blasted out its cryomagma in a single explosive event, or it may have spread its eruptions over time. A landmark on Pluto that was previously designated as an impact crater may ...