Pluto was identified in 1930, but by 1994, it was still little more than a blurry pixelated smudge on astronomers’ screens. Today, we marvel at its icy plains, towering mountains, and stunningly ...

New Horizons sends back best photos yet as probe closes in on Pluto. New color images from NASA’s New Horizons spacecraft show two very different faces of the mysterious dwarf planet, one with a ...

Pluto, once considered the ninth planet of our solar system, has been a topic of intrigue since its reclassification as a dwarf planet. Recent observations suggest that its atmosphere is expanding, ...

NASA explains Pluto's newly discovered "blue sky" and whether or not potential astronauts could ever witness an Earth-like sunrise. The New Horizons space probe sent back its first color images of ...

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JWST detected carbon dioxide and hydrogen peroxide on Charon's surface. Hydrogen peroxide suggests ongoing chemical reactions on Charon. Charon's carbon dioxide likely came from below its surface.

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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,” ...

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