The so-called 'planetesimal belts' are filled with tiny millimeter-sized particles created by collisions between comets.

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

If you were to perfectly follow the steps in An Idiot's Guide to Making a Solar System, you should eventually find yourself ...

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

Six of our cosmic neighbors are expected to line up across the night sky tonight, in what has been dubbed a "planetary parade ...

Astrophysicists have achieved a major breakthrough by capturing images of exocomet belts around 74 nearby stars. Using the ...

NASA shares images of comet C/2024 G3 (ATLAS) near the sun and stunning photos from Jupiter and Mars missions.

Jupiter's Great Red Spot storm, which usually appears dark-red, can be seen shining a lurid blue color in an ultraviolet ...

Mars helicopter Ingenuity appears to be missing rotor blades in Perseverance rover imagery captured. The rover's SuperCam ...

Astrophysicists led by a team from Trinity College Dublin have—for the first time—imaged a large number of exocomet belts ...

University of Arizona researchers have unveiled evidence of romance at the farthest reaches of the solar system: a cosmic ...