- Was Earth Terraformed by Martians? https://avi-loeb.medium.com/was-earth-terraformed-by-martians-9f80e078ea41 8 comments aliens
- Could an alien civilization from Mars have terraformed Earth? Former chair of the astronomy department at Harvard, Professor Avi Loeb, wondered if an advanced Martian civilization could have terraformed our planet, making life possible. https://anomalien.com/could-an-alien-civilization-from-mars-have-terraformed-eart 67 comments aliens