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

"We were very surprised to see that the same tiny plasma jets appear to be driving both the fast and the slow solar wind." ...

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 ...

A new study examines how much material from the closest star system to Earth will end up in orbit around the Sun, and how ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – here’s how to spot the celestial show ...

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.

Images captured by NASA's Solar Dynamics Observatory have revealed that "coronal loops" give off subtle flashes of ...

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.

Despite common assumptions, the disk of our Solar System is warped, and the planets travel around the Sun in slightly eccentric (or oblong) orbits. Scientists now think that a mysterious object ...

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 ...