|An artist's impression of the surface of Proxima b Credit: ESO/M. Kornmesser|
In case you missed it in the last couple of weeks, a potentially-habitable Earth-sized world has been found orbiting around Proxima Centauri, a mere 4.23 light years away (or 40 trillion km).
Sure, that's several thousand years away travelling with current technology, but hopefully this will spur both government and private space initiatives to press on with developing the next generation of propulsion systems.
You can read all about this exciting discovery at the BBC News website here and learn all about "other Earths", potentially habitable exoplanets, in this infographic from Futurism.
All of the planets listed at Futurism have the potential for adding a touch of 'realism' to the homeworlds of any alien races your player-characters meet, be that in pure sci-fi adventures, superhero games, or just unexpected alien invasions of Earth.