All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...
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 ...
Saturn’s rings, imaged here by NASA’s Cassini orbiter, are one of the solar system’s most reliably spectacular sights. But ...
Earth's moon might have once had stunning rings like Saturn, but simulations suggest solar radiation, gravity, and planetary ...
An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...
A new study, currently under review for publication, suggests that an ancient cosmic visitor might have significantly altered the orbits of our solar system's giant planets. Scientists propose that ...
Saturn is the second-largest planet in the solar system. With an equatorial diameter of nearly 75,000 miles, it's about nine times the size of Earth. However, Saturn's seven rings are about ...