He argues that our planet’s own plethora of geostationary satellites are not yet numerous enough to be visible to alien telescopes. However, Socas-Navarro says that we are capable of detecting such an alien Clarke exobelt around a nearby Red dwarf star with our own current technology. Socas-Navarro writes in his paper that civilizations with a high density of devices and/or space junk in that region may leave a noticeable imprint on the light curve of the parent star. ), Socas-Navarro writes, especially considering that rings around habitable rocky planets are probably rather uncommon. “However, if we extrapolate our current rate of populating the Clarke belt, we would be detectable by our current technology by the year 2200.”
Source: Forbes February 24, 2018 20:03 UTC