A hoop of satellites surrounds Earth. Possibly we may see one round an alien world
European House Company
One civilisation’s house trash could also be one other’s house treasure. Technologically superior aliens on distant worlds could possibly be revealed by the satellites and different house junk orbiting their planets.
Once we consider indicators of civilisation which may be seen round different worlds, many deal with people who require excessive technological development, like big lasers or Dyson spheres – huge artificial structures that harvest energy from a star.
There aren’t practically as some ways to search for civilisations which have superior to…
