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 ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

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 eight major planets of our Solar System orbit the Sun in the same flat plane, and all at different speeds. Mercury, the closest planet to the Sun, completes an orbit – a year for the planet ...

Students were taught about different seasons, phases of the moon, and other out of this world lessons by Dunlap, who travels ...

Stargazers will be treated to a rare alignment of seven planets on 28 February when Mercury joins six other planets that are already visible in the night sky. Here's why it matters to scientists.

This month offers incredible views of six planets, including Venus-Saturn conjunction. See the dates for all of 2025's ...

Comet ATLAS (C/2024 G3) came three times closer to the sun than Mercury on January 13—and this may have changed it ...