Message #23454

[mccoy]

Computer models suggest the planet's temperature, with an atmosphere, could be "in the range of minus 30 Celsius (-22 Fahrenheit) on the dark side, and 30C (80F) on the light side," Reiners told journalists.
Like the Moon in relation to Earth, Proxima b is "tidally locked," with one face always exposed to its star and the other perpetually in shadow.
Emerging life forms would also have to cope with ultraviolet and X-rays bombarding Proxima b 100 times more intensely than on Earth.

Providing there is an atmoshpere, that wouldn't be too much of a great drawback. The dark side would be free from radiations and the temperature there is not extremely low. But it is a the terminator, the bordering area between the dark side and the bright side where the radiations would probably be tolerable with more ideal temperature conditions.