... Dark dust lanes cut across the middle of this gorgeous island universe, a strong hint that NGC 3628 is a spiral galaxy seen sideways. ... Visible vistas include a vast and colorful Earth, a deep dark sky, and an occasional spaceship sent to visit the station. ... Large galaxies and faint nebula highlight this deep image of the M81 Group of galaxies. ... Most of the time, the apparent motion of Mars in Earth's sky is in one direction, slow but steady in front of the far distant stars. ...