A bad space environment near Proxima Centauri can make life impossible

This article was originally published Conversation. The publication contributed to an article on Space.com Expert voices: Op-Ed and Insight.

If you look in the southern sky you can point to the “pointer” stars, the Southern Cross. One of these pointers is Alpha Centauri, which is actually a pair of sun-like stars that are close to each other to tell apart by eye.