Pluto was once the ninth planet of our solar system, until scientists reclassified it in 2006, sparking outrage and debate.

Pluto Day 2023 is observed yearly on February 18 to mark the 1930 anniversary of Pluto’s discovery. Pluto was named after the Roman deity of the underworld and on the name of the founder of the ...

“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 ...

(Correction: An earlier version of this story misstated how far Pluto is from the sun. The correct number is 3.7 billion miles.) What was discovered in Flagstaff, Arizona, and killed off in Prague?

The controversy endures over Pluto's true status, but the solar system underdog continues to capture hearts across the globe. Clyde Tombaugh didn't set out to discover Pluto when he sent his ...

Pluto is too far away from Earth to be seen with the naked eye. If you stood on Pluto's surface, the Sun would merely appear to be a very bright star. Although previous images showed that ...

You can watch Yellowstone seasons 1-4 for free on Pluto TV this weekend, Feb 14-16. The hit western series stars Kevin Costner, and first premiered in 2018. There are other westerns available for ...