dwarf planet

Asteroid Hygiea is Round Enough That it Could Qualify as a Dwarf Planet, the Smallest in the Solar System

Using the Very Large Telescope, an international team of astronomers observed Hygeia and determined it could be the smallest dwarf…

11 months ago

Just discovered! “Farout”, the Farthest Object Ever Seen in the Solar System

Astronomers have discovered a distant body that's more than 100 times farther from the Sun than Earth is. Its provisional…

2 years ago

New Dwarf Planet Found in the Outskirts of the Solar System, Giving Astronomers More Ammunition to Search for Evidence of Planet 9

Astronomers have found a new dwarf planet way out beyond Pluto that never gets closer than 65 AUs to the…

2 years ago

Astronomy Cast Ep. 456: Pluto Revisited

This week, we return to our starting point, where Astronomy Cast began: Pluto. 11 years on, we have a whole…

3 years ago

Dawn Gets Right in Between the Sun and Ceres and Takes this Video

Using data provided by the Dawn probe, which now orbits between Ceres and the Sun (at opposition), NASA has created…

3 years ago

The Orbit of Pluto. How Long is a Year on Pluto?

Given its extreme distance from the Sun, Pluto has a very long orbital period. As such, a single year on…

3 years ago

What is the Color of Pluto?

Thanks to the New Horizons mission, which conducted the first detailed study of Pluto in 2014, we know that Pluto's…

3 years ago

New Dwarf Planet Discovered Beyond Neptune

A dwarf planet has been discovered beyond Neptune. It's about 700 km in size, and its orbit takes it 120…

4 years ago

Thanks, Comet Pluto. Solar System Nomenclature Needs A Major Rethink

Thanks to new data from the New Horizons mission that shows how Pluto behaves as both a planet and a…

4 years ago

How Do We Terraform Ceres?

It is possible that we could someday transform Ceres, the largest object in the Asteroid Belt, to make it friendly…

4 years ago