Astronomers have made an exciting discovery—a new Earth-like exoplanet, Proxima b, located in the Alpha Centauri system. This ...

We don't know if any exoplanets host life. We have yet to find an Earth twin with the right orbit around a sun-like star, but we have come close. Take Proxima b, an exoplanet that orbits the ...

All told, Proxima b receives about 1,000 times more solar wind radiation than the Earth does. This would make it extremely difficult for the planet to host an atmosphere, let alone liquid water.