One million alien visitors from another star system could already be lurking in the solar system. We aren't talking about "little green men" here, however — more "little (and not so little) gray rocks ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Lasers could be used to propel tiny spacecraft toward Alpha Centauri, scientists suggest. | ...

Alpha centauri is the closest star system to our solar system. It contains multiple stars and at least one planet in a ...

Centauri A and Alpha Centauri B – they are now the “best known” stars. This has also allowed a unique and very detailed comparison between “real nature” and current stellar theory for solar-type stars ...