Flat space definitions of straightness apply over small areas, but big ones. OK, Einstein's position is that Newton is making the same mistake as the ant. Inertial frames, that means axes plus ...

One of the most significant downsides with most camping tents is that they require a relatively flat surface. Furthermore ... The Kanvas 001’s internal space, based on A-frame cabins, is generous.

These images come from multiple space agencies, including NASA, ESA, and private companies like SpaceX, making a global conspiracy virtually impossible. Some Flat-Earthers claim that NASA fakes ...

Pictures of the round Earth from space? Government conspiracies. The fact that you can see ships disappearing hull-first over the curve of the horizon with your own eyes? Well, flat-Earthers claim ...

A new type of flat, razor-thin telescope lens could transform deep-space stargazing by making it possible to mount lightweight but powerful telescopes onto aircraft and satellites, scientists say.