Long ago, a planetary object eight times the mass of Jupiter may have once visited the solar system and altered […] The post ...

The orbits of Jupiter, Saturn, Uranus and Neptune may have been forever changed by an enormous object that whizzed through ...

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

Our Solar System is a carefully balanced celestial dance held together by a virtually perfect balance of gravity and inertia.

Study reveals an interstellar object's impact on planetary orbits, reshaping solar system dynamics. Discover how simulations ...

In these cases, too, the flybys that had previously altered the giant planets' orbits to their present states recreated the solar system's current appearance. The simulation that produced the most ...

Jan. 15, 2025 — New observational data and simulation models have confirmed a new type of planet unlike anything found in the Solar System. This provides another piece of the puzzle to ...

Scientists believe that such an event could explain the changes in Solar System planetary orbits, including the moderate eccentricities and inclinations observed today. The team also called for ...

Despite common assumptions, the disk of our Solar System is warped, and the planets travel around the Sun in slightly eccentric (or oblong) orbits. Scientists now think that a mysterious object ...

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 ...

The terrestrial planets are the four innermost planets in the solar system ... Icy Enceladus orbits within the densest part of Saturn’s E Ring, and has recently been shown to be the source of that ...