He called this hypothetical world "Planet X." "In some ways, Pluto's more of a planet than some of the other established ...

Forbes contributors publish independent expert analyses and insights. Jamie Carter is an award-winning reporter who covers the night sky.

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

“New Horizons shattered a major paradigm of planetary science,” says Alan Stern, the mission’s principal investigator. “Pluto turns out to have as much complexity as Mars or Earth, so much so that I ...

Why was Pluto reclassified as a dwarf planet? One might think that it’s purely a matter of size. Mercury, the smallest of the ...

The relative quantities of volatile gases like methane and ethane can reveal key details about distant Kuiper Belt objects.

Breaking news shocked Villanova’s campus last Saturday, March 15. Everyone remembers exactly where they were when they received the email. It was one of those moments in life that you will always ...

Lord of the Underworld and the planet of regeneration, Pluto’s influence is deeply hidden and obscure, but it never ceases to unveil what’s buried beneath the surface. Look at it this way ...