An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

While the planets are technically always "aligned" along the same plane in our sky, seeing so many at once is a special ...

NASA’s Voyager mission completed humankind’s first close-up exploration of the four giant outer planets of our solar system.

NASA discovers something on Neptune and Uranus: "There are more than 5000" The ice giants of the solar system have long been ...

Because planets always appear in a line, the alignment isn't anything out of the norm. What's less common is seeing so many ...

Early 2025 is a good time for skygazing and spotting up to seven planets in the night sky – if you have a little help.

The outer solar system is a fascinating region that includes a variety of celestial bodies, particularly trans-Neptunian objects (TNOs), which are located beyond the orbit of Neptune. Recent ...

Directly to the right of Orion is Jupiter and left of it is the unmistakable red disc of Mars. The best time to view the ...

But when you're looking at these objects, these are photons that have travelled millions or billions of miles through space ...