
Earth
About 80 years ago, it was possible for the first time to confirm what modern science had suggested for centuries: Earth shows its sphericity based on a curved horizon. The following age of space flights opened other opportunities. First, our home planet could be observed from low Earth orbits, and then, a while later, even from the distance of the Moon. Interplanetary space flights even shifted o...
About 80 years ago, it was possible for the first time to confirm what modern science had suggested for centuries: Earth shows its sphericity based on a curved horizon. The following age of space flights opened other opportunities. First, our home planet could be observed from low Earth orbits, and then, a while later, even from the distance of the Moon. Interplanetary space flights even shifted o...