Alpha Centauri is the closest star system to Earth.
According to Space.com, Alpha Centauri is only 4 light-years away, a very, very close distance. However, that distance is only close by cosmic standards. It is estimated that it will take humans about 6,300 years to get there with existing technology. Therefore, humans have not yet been able to go to Alpha Centauri and live there. Simply put, we cannot survive until we reach our destination.
The Alpha Centauri system has 3 stars, 2 of which are like our Sun and the other is a red dwarf named Proxima Centauri. There are at least 2 planets orbiting Proxima Centauri, 1 of which is called Proxima b.
Scientists think that Proxima b is an Earth-sized planet and lies in the habitable zone – an area around a star at a distance where liquid water could exist.
Scientists believe that there may be life in Alpha Centauri. And Proxima b is currently thought to be the most habitable world in the star system, thanks to its size and distance from its host star (similar to the distance between Earth and the Sun). However, Proxima b doesn’t have an Earth-like atmosphere, and researchers are learning more about the planet to more closely assess its habitability.
Researchers recently unveiled a space telescope called TOLIMAN. It will be used to further explore this star system.