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 ...

Further simulations on flybys into the inner Solar System revealed one of our own planets might be flung out of the ballpark ...

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

Astronomers have discovered extremely powerful winds pummeling the equator of WASP-127b, a giant exoplanet. Reaching speeds ...

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

A powerful new tool comes online this year that could help astronomers locate the mysterious planet hiding somewhere beyond ...

A new study suggests that a planet-sized object may have passed through the solar system billions of years ago.

Plate tectonics give Earth its mountains, earthquakes, continental drift and maybe even helped give rise to life itself. But ...

Emily Simpson has loved space since she was a 10-year-old kid celebrating her birthday at a planetarium. Now a recent Florida ...

Both systems include a moon that is a large fraction of the size ... Dec. 19, 2024 — New studies offer a clearer picture of how the outer solar system formed and evolved based on analyses of ...

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 ...