Alpha Centauri, one of the two "Pointer Stars" that help stargazers find the Southern Cross in the Southern Hemisphere, may have a planet in orbit around it. If it does, the Webb Telescope will find ...

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 ...

Last year, Stephen Hawking and Russian billionaire Yuri Milner hatched an ambitious plan to send a tiny probe to the Alpha Centauri star system. Travelling at 20 percent the speed of light, the ...

Finding a habitable planet in the nearest star system is an ongoing quest. But the overall habitability of the Alpha Centauri system based on its three stars, just over 4 light-years away, could be ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Earthlings may have left boot prints on the moon, but even nearby stars, such as the bright Alpha ...