On the 20th anniversary of Pluto’s infamous demotion, Mike “Pluto Killer” Brown explains why any reversal of that decision ...

Unpopular opinion time, Pluto being reclassified as a dwarf planet was a great thing for our understanding of the solar ...

Picture a star, about half the sun’s mass shining with a dim red light. Lumbering around it on a 5,000-year orbit is a huge ...

Since it was stripped of planetary status, Pluto’s defenders have been fighting the decision – and they’re only getting more passionate ...

Pluto lost its planethood for a very specific reason. Whether or not that’s a good reason depends on who you ask.

A 24-year-old observatory assistant from the Midwest discovered Pluto. Clyde Tombaugh, born in 1906 in Streator, Illinois, ...

Those who supported Pluto’s demotion included Neil DeGrasse Tyson ...

The discovery of the Kuiper Belt revealed thousands of icy objects near Pluto, challenging its status as a planet. After the ...

In a groundbreaking discovery, astronomers have identified a potential dwarf planet candidate, 2017 OF201, buried within ...

The spacecraft is currently approaching the outer boundary of the solar system as it prepares to cross into interstellar space.

Many people have formed strong opinions on this topic in an ongoing cultural conversation — you might even have one yourself. Pluto had been known as the ninth planet of our solar system ever since it ...

Nothing like the controlled disassembly of BepiColombo has ever been attempted in such a harsh environment as the region of ...