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

Pluto's largest moon, Charon, likely formed through a capture event in the early, crowded Kuiper Belt. Three-body encounters ...

We live in changing times. While we once flippantly threw villains to the lions, now we seek to fire them into the sun.

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

Blue Origin used its New Glenn rocket to launch twin probes that will study Mars' atmosphere and ionosphere — and then ...

Nearly a century after Pluto’s discovery, astronomers are still hunting for mysterious planets beyond Neptune - including a ...

Recent scientific modeling has proposed a fascinating theory about how Pluto captured its largest moon, Charon. The theory ...

Is a sun a star or a planet? While science now agrees the sun is a star, new telescopes may soon challenge how we define ...

Astronomers studying the distant reaches of our Solar System have identified an unusual trans-Neptunian object (TNO) locked in a rare orbital configuration with Neptune. The object, discovered through ...

Is there a massive undiscovered planet on the outer reaches of the solar system? The idea has been around since before the discovery of Pluto in the 1930s. Labeled as planet X, prominent astronomers ...