... Our Earth is not at rest. ... The Sun orbits the center of the Milky Way Galaxy. ... This enhanced Hubble Space Telescope image shows in remarkable detail the inner portion of the disk of dust and gas surrounding the star AB Aurigae. Knots of material, visible here for the first time.. ... These wisps of gas are all that remain visible of a Milky Way star. ... Here, a high concentration of dust and molecular gas absorb practically all the visible light emitted from background stars. ...