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 ...

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

Dec. 19, 2024 — New studies offer a clearer picture of how the outer solar system formed and evolved ... pieces of the red planet hurtling through space. One of these chunks of Mars eventually ...

The outer solar system is a fascinating region that includes ... effectively ruled out a substantial portion of the parameter space where it could exist, suggesting that if it does exist, it ...

NASA’s Voyager mission completed humankind’s first close-up exploration of the four giant outer planets of our solar system.

What an amateur astronomer recently took to be a newly-discovered asteroid turned out to be a Tesla Roadster voyaging through ...

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

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

When you first learned about the Solar System, you probably saw diagrams that made it look orderly, with planets arranged in ...

The dwarf planet is a bizarre, cryovolcanic world. However, the organic deposits discovered on its surface so far are unlikely to originate from its interior. The organic material found in a few areas ...