It is the closest single star to the Sun and the fourth closest star overall, after the three stars in the Alpha Centauri system ... the star to be in the habitable zone as they are too hot.

will join the search for potentially habitable planets around the Alpha Centauri star system. The survey will… Read More GUADALAJARA, Mexico – A multimillion-dollar campaign to look for ...

one of which is so tantalizingly similar to our sun that many experts speculate that its solar system might contain habitable planets. But Alpha Centauri is about 4.3 light-years, or 25 trillion ...

The habitable zone for complex life ... and carbon monoxide (red). This narrower zone excludes many exoplanets including Proxima Centauri b and TRAPPIST-1 planets e, f and g (black dots).