The controversy endures over Pluto's true status, but the solar system underdog continues to capture hearts across the globe.

“New Horizons shattered a major paradigm of planetary science,” says Alan Stern, the mission’s principal investigator. “Pluto ...

Astrophysicists have been grappling with the question of how water arrived on our young planet for decades. One of the ...

Pluto may not be a planet any more, but you still have a chance to see the distant dwarf planet at one of Michigan's ...

Researchers are examining how artificial intelligence technologies could support a planned Chinese mission to the boundaries ...

Saturn, Venus, Neptune, Uranus, Jupiter, Mars and Mercury will be visible in an uncommon planetary alignment this month.

Trans-Neptunian objects (TNOs) are icy bodies that vary widely in size, from large dwarf planets like Pluto and Eris—each ...

Clyde Tombaugh discovered Pluto in 1930 at Lowell Observatory in Flagstaff. Here's how Pluto won - and lost - its planetary status.

Once water is captured by a planet’s gravitational pull ... Observations of extrasolar systems with belts similar to the Kuiper Belt reveal that planetesimals in these belts sublimate carbon ...

Sure, they’re particles and rocks, but they’re still a fascinatingly long way from home. Alpha Centauri is the star system ...