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

Now in its ninth year, the overwhelmingly expansive sci-fi survival sim No Man’s Sky is transforming yet again. Another ...

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

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 ...

Baker said that there are other astronomical events that may be more interesting than the parade of planets. Baker said Mars ...

The latest update for Sins of a Solar Empire 2 brings some icy variety to the galaxy, adds new ship artifacts, and tweaks the game's AI.

Stargazers will be treated to a dazzling six-planet "alignment" this January.

When you first learned about the Solar System, you probably saw diagrams that made it look orderly, with planets arranged in ...

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.

A new study claims it is possible an "alien visitor" could have warped our solar system during its earliest years.

HELENA — The planets are aligned. Six planets, Mars, Jupiter, Uranus, Neptune, Venus and Saturn can be seen in the night sky.

Simpson and Chen ran mathematical models looking at how differently sized Earth-like worlds would have affected the rest of ...