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

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

A new study suggests that a planet-sized object may have passed through the solar system billions of years ... These planets’ orbits show minor discrepancies from the ideal circular shape.

A large asteroid could be heading toward Earth within the next decade, and there's a small chance it could strike the planet, according to NASA.

If you get the question in Trivial Pursuit “how many plantes are there in the Solar System ... the eight planets. Every couple of days it will scan the night sky with the largest camera ...

For much of January and February, you have the chance to see six planets in our solar system after dark ... making it appear at its biggest and brightest." ...

So you can see every planet in our solar system over the next month ... adding that you can often see its four biggest moons appearing as "little stars around it." How to find the planets after ...

Researchers offer their most comprehensive assessment to date of the history of water and organic compounds in a sample ...

The eight major planets of our Solar System orbit the Sun in the same flat ... rhythms can improve how quickly we learn. The world's largest invertebrate remained hidden from humanity until ...

This time, it approached the most minor planet in the Solar System to a distance of just ... such as Nathair Facula, where the largest volcanic eruption on Mercury occurred. The material ejected ...