4 ms·
The most fun idea in this article is a tacit proposal to look really hard for signs of advanced technologies in and around red dwarfs because they have had the
by robwwilliams 5y ago
The most fun idea in this article is a tacit proposal to look really hard for signs of advanced technologies in and around red dwarfs because they have had the potential to support an oxygen-rich biosphere for at least 10x longer that earth: roughly 8 billion years versus 800 million years.
- dvh 5y agoAll red dwarfs are flare stars, with solar winds 10 times stronger, they heat less so planets must be closer which makes it even worse.
- Symmetry 5y agoYeah. One danger for life is the star cooking it. But the other is that the solar wind will tend to strip away a planets hydrogen if life doesn't develop photosynthesis to give the planet an ozone layer fast enough. It took life on Earth most of a billion years[1] fooling around with chemosynthesis before photosynthesis took off. It's a hard step and life around a red dwarf would be on a much more stringent timeframe than life on our planet was. [1]http://hopefullyintersting.blogspot.com/2018/03/the-drake-equation-again.html http://hopefullyintersting.blogspot.com/2018/03/the-drake-eq...