When seen from space, “Planet Earth” is a mix of clouds, with the majority (two
thirds) of the total surface under ocean water with the remaining third of land forming
what we call continents, with various degrees of increasing albedo from open water
bodies, vegetation, bare soil, rocks, deserts, and snow/ice packs.
In a very short time (relative to Earth's age), the modern human civilization has
conquered its neighboring space with probes, satellites, and vehicles carrying humans