To be a planet, NASA says an object must be big enough that its gravity has cleared away any other objects of a similar size ...
Astro Brief is a podcast collaboration between KSMU, the Missouri Space Grant, and MSU's Department of Physics, Astronomy and ...
Scientists have discovered a bizarre planetary system where a rocky world orbits farther out than giant gas planets, defying ...
An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar system's planets onto a different course. When ...
Our solar system appears beautifully organized, but its stability is actually the result of an incredibly delicate cosmic ...
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 dubbed ...
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