Trans-Neptunian Object (TNO)

Astronomers Find a New Binary Object in the Kuiper Belt

Scientists from the Southwest Research Institute (SwRI) have presented the discovery of a binary pair of objects way out in…

10 months ago

Uranus’ Moons are Surprisingly Similar to Dwarf Planets in the Kuiper Belt

Astronomer William Herschel discovered Uranus—and two of its moons—230 years ago. Now a group of astronomers working with data from…

11 months ago

If Planet 9 is a Primordial Black Hole, We Might Be Able to See Flares When it Consumes Comets

A comet-eating black hole the size of a planet? It's possible. And if there's one out there in the distant…

1 year ago

Over a Hundred New Large Objects Found in the Kuiper Belt

Hey Pluto, Sedna, Haumea, Makemake Et al.: You’ve got company! While searching for distant galaxies and supernovae, the Dark Energy…

1 year ago

Evidence Mounts for the Existence of Planet Nine

The latest study that looks into the possible existence of Planet 9 offers a new technique, one which is free…

4 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…

4 years ago

Centaurs Keep Their Rings From Greedy Gas Giants

Minor planets like Chariklo are good at keeping their ring systems away from larger planets, and we are beginning to…

5 years ago

How Many Moons Does Mercury Have?

The planet Mercury has no moons, but why is that the case? The reason is due to a combination of…

6 years ago