Though Pluto has formally been considered a dwarf planet for almost two decades, it still has many lessons left for planetary scientists — including hints about how the solar system formed.

What Pluto can teach us about planets and our solar system : Short Wave Pluto hasn't been a planet for almost 20 years. In the early 2000s, scientists discovered several objects of a similar size ...

Pluto may have lost its status as a full-fledged planet in 2006, but that doesn't mean it's a joke of a world this April Fools' Day and the folks behind Pluto TV want to make that clear.

Pluto was discovered in 1930 in Arizona, but in 2006 scientists decided to cut Pluto from the planetary line up. Here is why Pluto isn't a planet.

Oh my gosh, that’s really rude, first off. But then, we were talking about other stuff and it made me feel kind of bad for the kids who have moved on, who know Pluto is not a planet and it’s fine.

More than 15 years after Pluto was demoted to dwarf planet, the debate, even among scientists, continues. By Kenneth Chang Who doesn’t love Pluto? It shares a name with the Roman god of the ...

Pluto, officially a dwarf planet, has surprising complexity on its surface. While certainly a world, not everyone agrees it is a planet.

Since the International Astronomical Union changed its definition in 2006, Pluto is no longer a planet. Here's why.

Pluto was demoted from a planet to a dwarf planet in 2006. So why is its status still so controversial today? ... It must have enough mass to draw itself into a round shape.

Pluto may have lost its status as a planet more than 13 years ago, but don't tell that to NASA Administrator Jim Bridenstine. Speaking at the University of Colorado recently, Bridenstine made it ...

Everything you know about Pluto is probably wrong. Just ask a kid. Kids are much more up-to-date with knowledge about space and dinosaurs and other cool stuff we grown-ups haven’t read about in ...

Poor Pluto was demoted, ... but it could soon be returned triumphantly to full planet status. ... the IAU decided to draw up the first scientific definition of the term planet.