A study of Kuiper belt objects points strongly to the existence of a super-Earth on the outer edge of our…
Even with all we've learned about our own Solar System, especially in the last couple of decades, researchers still face…
A new study from the Harvard Smithsonian Center for Astrophysics has bolstered the case for our Sun having a long-lost…
Oh Planet Nine, when will you stop toying with us? Whether you call it Planet Nine, Planet X, the Perturber,…
What's going on in the distant reaches of our Solar System? Is there a Planet 9 out there? Out in…
Remember Far Out, the distant planet at the far reaches of the Solar System, that was discovered in December, 2018?…
Is there or isn't there a Planet 9? Is there a planet way out on the outskirts of our Solar…
Astronomers have discovered a distant body that's more than 100 times farther from the Sun than Earth is. Its provisional…
Astronomers have found a new dwarf planet way out beyond Pluto that never gets closer than 65 AUs to the…
In a new study led by the Lowell Observatory, a team of researchers indicate how the next-generation Large Synoptic Survey…