Everyone's favorite dwarf planet, Pluto, was discovered just 95 years ago. Here's the story of how the once-ninth planet was ...

To understand what happened to Pluto, we must actually go back to the late 1700's, when a number of astronomers thought that there was something odd to the spacing of the planets orbiting the Sun.

In the earliest days, the Sun and the Moon were counted in ... And if you are still a Pluto-is-a-planet holdout, like we were, [Michael]’s argument that counting all the Trans-Neptunian Objects ...

Major revelations await you in your weekly horoscope for March 23 to 29, 2025. Well+Good's expert astrologer explains it all.

Clyde Tombaugh discovered Pluto in 1930 at Lowell Observatory in Flagstaff. Here's how Pluto won - and lost - its planetary status.

which is on average about 40 times as far from the sun as Earth is. It’s pretty chilly that far out. Temperatures on Pluto can reach close to -400 degrees Fahrenheit. Scientists don’t really ...

That decision came several years after discovering the Kuiper Belt, a ring of icy and rocky objects 2.8 billion miles from the sun and the same place Pluto orbits. According to the IAS ...