[Space] Gliese 581

[RyanW]

Originally Posted by David Johnston2

Odds are that any land life would have some ability to retreat underground to protect itself from solar flares.

I don't think there is any evidence of GL 581 being a flare star. It is classified as a BY variable, but the variance is so small it isn't clear that it isn't just measurement errors.

Of course, being closer to its sun, even "normal" solar activity may have a bigger impact.