Scientists are starting to get a clearer picture of how Pluto’s strange, hazy atmosphere works. Their latest discovery, concerning waves rippling through the dwarf planet's atmosphere, means ...

How many dwarf planets are there in our solar system? The recent discovery of 2017 OF201 makes the tally anywhere between ...

The James Webb Space Telescope (JWST) has discovered that a hazy sky over frozen Pluto is helping to cool the dwarf planet's atmosphere, while at the same time giving methane and other organic ...

Pluto is far from the only world to host atmospheric gravity waves. They occur on Earth, created by volcanic eruptions or intense heating from the charged aurora. Wind and weather can also ...

How long does it take Pluto to orbit the sun? Learn more about how this planet makes one lap around our Solar System.

Astronomers declared Pluto a planet in 1930, but its weak gravity couldn’t fully explain Neptune’s orbital wobbles. Scientists kept searching, and by the 1990s they were busy discovering many ...

On Pluto, gravity is lower and the atmosphere is more tenuous—Banegal explains that gaseous escape from Pluto occurs at a distance seven times the radius of the dwarf planet.

Make Pluto a planet again. According to a new study published in the scientific journal Icarus, Pluto never should have been downgraded more than a decade ago. Pluto was reclassified as a dwarf pla… ...

In the case of Pluto's heart, it was suggested that it could be caused by an ancient impact if the gravity in the region was higher than it appears.The difference in what we expect and what we are ...

Pluto was discovered in 1930 in Arizona, ... New Horizons flew at an average speed of 36,000 mph, and it got a gravity assist from Jupiter to pick up speed.

After a nearly decadelong journey, the New Horizons spacecraft zoomed past Pluto early Tuesday. The dwarf planet is now the most distant object ever visited by humanity. New Horizons’ closest ...

The new object could also challenge the hypothesis that there's a "Planet X" or "Planet Nine" beyond Pluto, with gravity affecting dwarf planets and other objects in the Kuiper Belt.