Astronomy Picture of the Day . MAGIC Star Trails . ... A reflection of the Earth's daily rotation on its axis, the star trails are also reflected in one of a pair of 17 meter diameter, multi-mirrored MAGIC telescopes. ... In 2009, during Saturn's last equinox, Saturn's thin rings threw almost no shadows onto Saturn, since the ring plane pointed directly toward the Sun. ... No one is yet sure. ... One solar day on a planet is the length of time from noon to noon. ... The Comet Hartley 2 Cruise . ...