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

Stargazers will be treated to a dazzling six-planet "alignment" this January.

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 ... Nov. 25, 2024 — A new computer model can be used to detect and measure interior oceans ...

Ever since Isaac Newton famously talked about gravity, its dominance as a force in our solar system has been well known. It's ...

Planetary scale model trails are letting cycling enthusiasts pedal their way through the cosmos. These trails are designed ...

Simpson and Chen ran mathematical models looking at how differently sized Earth-like worlds would have affected the rest of ...

DALLASI absolutely love this, it's called an orrery, and it's a little mechanical model of our solar system. You can see the planets here, orbiting the sun as they would do in real life.

The sun’s solar wind, made of charged particles, interacts with powerful eruptions, affecting cosmic rays and space weather.

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

Emily Simpson, a passionate space enthusiast and recent Florida Tech graduate, has published groundbreaking research that imagines an alternate version of our solar system. Instead of the asteroid ...