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

The enormous visitor to our solar system may have been about 8 times the mass of Jupiter, and come nearly as close to the sun ...

When an exoplanet is discovered, scientists are quick to describe it and explain its properties. Now, we know of thousands of ...

This solar system consists of four inner rocky planets and four outer gas giant planets as well as an asteroid belt, containing thousands of huge rocks, dwarf planets and comets. Our solar system ...

The organic material found in a few areas on the surface of dwarf planet Ceres is probably of exogenic origin. Impacting ...

The outer solar system is a fascinating region that includes a variety of celestial bodies, particularly trans-Neptunian objects (TNOs), which are located beyond the orbit of Neptune. Recent ...

The discovery of two new planets beyond our solar system by a team of astronomers ... The existence of these two exoplanets - an inner super-Earth and an outer icy giant planet - within the ...

Simpson and Chen ran mathematical models looking at how differently sized Earth-like worlds would have affected the rest of ...

The intensity of this inner nebular field was somewhere between ... haven't been many samples that could tell us about the outer solar system," Mansbach says. The team got an opportunity to ...