Right now, without moving a muscle, you are aboard a planet orbiting the Sun at 107,000 kilometres per hour, inside a solar system orbiting the galaxy at 720,000 kilometres per hour, while the Milky Way and Andromeda close on each other at roughly 400,000 kilometres per hour — and you cannot feel any of it.

Earth's solar orbit, the Sun's galactic path and Andromeda's approach are real motions in different reference frames. They cannot be simply added, and constant shared motion is not something the body can feel. The post Right now, without moving a muscle, you are aboard a planet orbiting the Sun at 107,000 kilometres per hour, inside a solar system orbiting the galaxy at 720,000 kilometres per…