Relative Cosmic Velocities [wide screen, more info]
@physicsJ Twitter!
FAQ: our actual speed is around 370 km/s to the CMB, but it depends where we are in our orbit around the Sun and the milky way... hence all the *relative* statements.
Imagery from: NASA / WMAP / JPL-Caltech / R. Hunt / Solar System Scope processing under CC BY 4.0
NASA ephemeris data: #top