"We are the first mission to be able to track space weather events in three dimensions routinely across the solar system." ...

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

The sun is much more than a bright light in the sky. It's a giant ball of burning gas that holds our cosmic neighborhood ...

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

Solar Orbiter has revealed that tiny, hair-like jets in the Sun’s coronal holes are responsible for both fast and slow solar ...

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 ...

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 before shoving four of the solar system's planets onto a different course.

One theory is that our ... system. The temperature of the central core rose as it became increasingly dense and opaque, and eventually became hot and dense enough that nuclear fusion began. The ...

Cosmic rays coming from outside the Solar System bring these particles closer to the Sun, where they experience changes ...