If you're my age, you probably remember learning that Pluto was the ninth planet in the solar system when we were kids, as 75 years of generations had before us. We learned that My Very Excellent ...

The head of NASA says maybe Pluto is a planet after all. He is wrong because Pluto is part of the rest of the solar system ...

The controversy endures over Pluto's true status, but the solar system underdog continues to capture hearts across the globe. When you purchase through links on our site, we may earn an affiliate ...

Is Pluto a planet? NASA Administrator Jared Isaacman told Congress on Tuesday that Pluto should be recognized as a planet, 20 years after its status changed.

Pluto in culture -- Pluto in history -- Pluto in science -- Pluto's fall from grace -- Pluto divides the nation -- Pluto's judgment day -- Pluto the dwarf planet -- Pluto in the elementary school ...

A new image of Pluto was sent back to Earth from the far, far distant New Horizons space probe, and it’s a doozy: It shows Pluto from the other side, backlit by the Sun. While we’ve seen pictures like ...

On July 4, 2015, there was no Independence Day celebration for Sol Alan Stern. Instead, he was hunkered down in his office talking to the New York Times. It was just three days before the project he’d ...