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RE: Supernova explosion, simple explanation | Cosmology | Science

in StemSocial4 years ago

I updated the text. I indeed copy-pasted the wrong sentence.

the most sensible opinion is to say "we don't know if the black hole had or has anything to do with life on earth." We do not have enough data on black holes killing life or favoring it in a complex or simple system.

Whereas I agree with the above statement, it sounds more logical to me to say that local environment plays a more important role than that of the back hole. That's the only thing I wanted to raise. Of course, we don't know and everything is possible.

However, we do know that the universe is hostile to life as we know it everywhere. The enormous effects of a black hole stalking us so close could very likely be lethal to us and our microbial ancestors. We also know that at the time of the dinosaurs and cyanobacteria, the solar system was located in a very different region of the milky way, following a fortunate trajectory that has avoided some disastrous cosmic events.

As written later in your comment, we at the same time lie quite far from the black hole. By the time we get close to it, life will be done around here because of the Sun.