One million alien visitors from another star system could already be lurking in the solar system. We aren't talking about ...

Early in our Solar System’s history, bits of icy debris were scattered and then gradually coaxed into a spiral alignment in ...

A weak magnetic field likely attracted matter inward, contributing to the formation of the outer planetary bodies, from ...

Our Solar System is in motion and cruises at about 200 kilometres per second relative to the center of the Milky Way.

Mission engineers at NASA’s Jet Propulsion Laboratory turned off Voyager 1’s cosmic ray subsystem experiment on February 25, ...

Voyager 1 crossed into interstellar space, or the space between stars ... up away from the plane that includes all of the ...

NASA engineers are turning off two instruments on Voyager 1 and Voyager 2 to ensure these twin spacecraft can continue ...

The farthest spacecraft from Earth are shutting off instruments in interstellar space, but their mission in interstellar ...

The entire solar system, ours at least, sits inside a pocket of low density called the Local Hot Bubble (LHB). This cavity in space is 1,000 light-years across, at least, and tips the thermometer at ...

If we achieve advanced nuclear, antimatter propulsion or other advance propulsion it would be possible to achieve near constant acceleration. This would ...

The stars as seen from Earth would have looked dimmer 14 million years ago, as the solar system was in the middle of passing ...