Tossing a bad guy into the Sun sounds simple enough, but orbital mechanics make it a far trickier task than you'd expect.

If, for some reason, we as a society executed villains by firing them into the Sun, this is how an astronomers says we would ...

Experience the breathtaking flyby of Pluto as New Horizons transforms our understanding of the solar system Witness ice mountains taller than the Alps vast plains and a heart-shaped formation that cap ...

"The Pluto flyby happened, and I was in the right place at the right time - perfectly positioned to fall in love with it," ...

Discover the decades-long quest to reach Pluto, from early mission concepts to the historic 2015 New Horizons flyby that revealed the icy world's hidden landscapes and geological activity. Kansas ...

Pluto imparted a slight but measurable alteration to the New Horizons spacecraft's trajectory (both bending and acceleration) during its 2015 flyby. The minimal nature of this trajectory change was ...

NEW YORK (AP) — Two bright green comets are streaming through the skies and are visible to skygazers in the Northern Hemisphere. Both hail from the outer edges of our solar system — possibly what’s ...

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Ask Lowell Observatory Director Jeffrey Hall how he feels about the visit to Pluto by NASA’s New Horizons spacecraft and he literally shivers with excitement. “I can’t even think about it without ...

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Boy, how the world has changed over the past 10 years, but perhaps not as profoundly as our understanding of another, more distant world that holds a special place in the hearts of northern Arizonans: ...