General Discussion
In reply to the discussion: Regarding the meteor crash in Russia... [View all]TheKentuckian
(25,023 posts)things like the Earth orbiting the sun, the existence of planets, and I'd reckon that a wolf didn't swallow the moon every morning.
It happens everyday most are very small and burn up but there are hits and craters. People find them. The numbers advantage to asteroids is pretty intense compared to other potential objects of any size in the observable universe. It wouldn't be too shocking to discover there are more asteroids and such just in our solar system than grains of sand on our small world.
Even a bountiful amount of space faring extra-terrestrial societies compared to the available number of intelligent beings in environments that lend themselves to developing such technologies would be super tiny compared to meteors. Add in intercepting with the Earth in reliable human observation period in such a fashion to leave evidence is puny.
Tough test logically. Too tough to be of worth to answering the question. Add in technological advantage in being able to reach our world and I'd argue they could be here 24/7 and how the hell would we know? I'm thinking all kinds of stealth technology is easier to reach than interstellar flight.