Explore the impact of stellar flares on the potential for alien life. Discover how higher levels of UV radiation can both ...

The eight major planets in our Solar System orbit the sun on the same flat plane but at vastly different speeds. Mercury, being the closest to the sun, completes an orbit in only 88 days ...

While the planets won’t be perfectly aligned, their placement will follow the orbital plane of our solar system. Which planets are parading in January and February? The January planetary ...

A "super-Earth" planet found outside of our solar system could have conditions suitable for life, according to experts at the University of Oxford. Researchers said the planet has a mass six times ...

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.

Get ready for a parade of planets this winter. During the month of January, sky gazers will be able to see four planets in one view — and come February, the parade will only expand. NASA says ...

Ever since Isaac Newton famously talked about gravity, its dominance as a force in our solar system has been well known. It's responsible for the orbits of the planets and their satellites ...

Stargazers will have another chance to spot a rare and beautiful “planetary procession” tonight with six planets aligned in the night sky. Mars, Jupiter, Venus, Saturn, Uranus and Neptune are ...

The next big solar storm could plunge the world into darkness ... When these high-energy particles interact with Earth’s magnetic field, they can cause geomagnetic storms that induce powerful electric ...

For a few brief evenings around February 28, every planet in our solar system will be visible at once, with Mercury making a cameo in the planetary parade which is running all this month and next.

A rare alignment of six planets—Venus, Mars, Jupiter, Saturn, Uranus, and Neptune—will be visible to stargazers on 25 January. This planetary parade offers a unique opportunity for skywatchers to ...