Heard of a biotechnosphere? It's what civilizations need to evolve into to manage planets and keep them livable. Could we detect them?
. It’s appearing more often, and if you’re not familiar with it, you might soon be. It’s a word with a purpose whose time has come. The biosphere comprises the parts of Earth where life exists, and the biotechnosphere is the biosphere intersecting with our technology.
If this is the situation we’re in, then chances are that other ETIs that might exist are in the same situation. “Space exploration can expand biotechnospheres beyond planets and create cosmic ecosystems encompassing planets and other cosmic objects; biotechnospheres, spacecraft and the environments of near-planetary, interplanetary space or interstellar space,” Romanovskaya writes.
So finding a planet that had a steady biosphere over a long period of time is a sign that some type of intelligence is employing powerful technology. “Change is the essential process of all existence,” Spock from Vulcan said, and it’s impossible to argue with. Biosignature three involves short-term changes in the biosignatures and planetary environments after a powerful event. Romanovskaya used theThe Carrington Event was a powerful solar storm that struck Earth in 1859. Damage was minimal since technology wasn’t so widespread or advanced. But if a storm that powerful struck us now, it would cause widespread damage to things like power grids and communication infrastructure, especially satellites.
Artist’s concept of a free-floating Jupiter-like planet. We don’t know how many FFPs there might be in the Milky Way, but finding one with steady biosignatures would almost certainly be a biotechnosignature.
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