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> I get what you are saying, but I would find it even more amazing if we are alone. Alien life in the universe is extremely likely. That does not mean however
by giantrobot 2y ago
> I get what you are saying, but I would find it even more amazing if we are alone.
Alien life in the universe is extremely likely. That does not mean however that every odd phenomenon is evidence of that alien life. It's unlikely (possible but unlikely) some alien civilization has a pet black hole in orbit of their planet. Just a random comet getting grabbed by its gravity could generate dangerous x-ray bursts for the planet's inhabitants. Jumping to the conclusion of "it's aliens!" is unscientific and really a bit tiring.
- cthalupa 2y agoWell, this is all positioned as "possible technosignature," there's not some black hole orbiting around a planet that we've seen that has us going "that's weird must be aliens." Though, a black hole of the size we're talking about is in and of itself potentially evidence of aliens - as noted in the article, they would evaporate within a year and a half without a constant influx of mass. Most places where you would find a black hole that is accreting matter is going to be a place where there is enough matter for it to become significantly larger, and once it's away from places rich with matter, space is emptying enough there's basically no chance it's having that much fall in.
- The_Colonel 2y ago> Jumping to the conclusion of "it's aliens!" is unscientific and really a bit tiring. It kinda seems your jumping to conclusions, "sign" is not the same thing as "evidence". Sign is basically increasing the perceived likelihood, but it may mean an increase from e. g. 0.000001% (baseline) to e. g. 0.001%. Add some other signs like presence of water, radio activity etc. (each of which alone is no proof of aliens) and you can get interesting candidates.