A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...
Astronomers are investigating a potential hidden planet, dubbed Planet Y, far beyond Neptune. Its gravitational pull is ...
A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...
Our solar system now, once again, officially consists of only eight planets. Although largely debunked, speculation continued ...
The methane gas may constitute a rarefied atmosphere, or it may come from erupting plumes on Makemake’s surface.
The solar system is composed of the sun, eight major planets, five dwarf planets, over a hundred moons, and countless comets ...
(CNN) — The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have ...
The simulation of the Solar System that came the closest to the observation was the presence of a small planet, between the ...
Anyone hungry for the icy crunch of a Pluto -like body? No? Well, one nearby white dwarf is going all in on a Pluto-esque ...
Astronomers have discovered 2017 OF21, a distant dwarf planet candidate located about 90 times farther from the Sun than Earth, making it more than twice as far as Pluto. With a highly elongated orbit ...
Exoplanet hunters Christopher Watson and Annelies Mortier explain the long search for a 'twin Earth' capable of sustaining ...