When you first learned about the Solar System, you probably saw diagrams that made it look orderly, with planets arranged in circular orbits around the Sun on a flat disk. But in reality, our Solar ...

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

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

The research, yet to be peer-reviewed, sheds light on what could have changed the orbits of several planets in the solar ...

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 ...

Flickering coronal loops in the Sun's outer atmosphere could act as an early warning system for solar flares, according to ...

Comet ATLAS (C/2024 G3) came within 8.3 million miles of the sun on January 13, reaching the perihelion of its massive, 160,000-year orbit through our solar system. The comet was only first ...

A planet-sized visitor possibly visited the solar system billions of years ago and permanently changed the cosmic neighbourhood by warping the orbital path of four outer planets of the system, a ...

Because the period of an object does not depend on its mass, comets’ orbital periods remain unchanged due to mass loss.