18/04/2023
Everything in space, including the Milky Way, is moving. The Earth moves around the Sun, the Sun moves in the Milky Way, and the Milky Way cruises through space. The Cosmic Microwave Background radiation, radiation left over from the Big Bang, is used as a reference point to measure the velocity of things moving in space. The Local Group of galaxies, which the Milky Way is part of, is estimated to be moving at about 600 km/s or 2.2 million km/hr!