Pluto has long been one of the most controversial objects in our Solar System. For decades it proudly held the title of the ninth planet, only to be reclassified in 2006 as a dwarf planet. That ...

Pluto’s atmosphere may finally be thinning as it moves farther from the sun, with observations suggesting atmospheric pressure has fallen by as much as 16%.

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London. Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and ...

Twenty years after Pluto became a dwarf planet, people are still fighting over its status. Experts explain why the debate feels so personal.

Twenty years after Pluto lost its planetary status, the debate continues as scientists still disagree over what defines a planet.

Since it was stripped of planetary status, Pluto’s defenders have been fighting the decision – and they’re only getting more passionate Twenty years ago, Pluto got demoted. After a vote by the ...