That sphere in the foreground is an artist's impression
of the Proxima B exoplanet, which gravitates around
the little orange star in the background.
It’s not exactly just down the road. The distance between Earth and Proxima B is over 4.2 light years. That’s to say, over 40 thousand billion kilometers. But that’s neither here nor there. In more down-to-earth terms, it will probably take our human scientists another ten or so years to use new scientific instruments to tell us whether or not there might be, or might have been, life of some kind on Proxima B.