The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar system's planets onto a different course.

Stock illustration of all the solar system's planets. Mars, Venus, Jupiter, Saturn, Uranus and Neptune will be visible all at once this month. Stock illustration of all the solar system's planets.

A planet parade is when several of our solar system's planets are visible in the night sky at the same time. There will be six planets visible this time around, including Venus, Mars, Jupiter ...

If you were to perfectly follow the steps in An Idiot's Guide to Making a Solar System, you should eventually find yourself ...

15, 2025 — New observational data and simulation models have confirmed a new type of planet unlike anything found in the Solar System ... 2024 — Dark ovals in Jupiter's polar haze, visible ...

Io is the most volcanic world in the solar system, with around 400 volcanoes. Its extreme activity is driven by "tidal flexing" from Jupiter's crushing gravity. | Credit: NASA/JPL-Caltech/SwRI ...

The acid yellow moon Io that orbits Jupiter may be less than 30% the size of Earth, but is considered the most volcanic body ...

The Moon and Jupiter will meet in the southwest sky at around 9.00pm GMT, where Jupiter will be shining bright to the left of the Moon. At the same time tomorrow evening (February 6), the pair will ...