Exotic: This red arc, seen in infrared, is a giant shock wave created by a speeding star known as Ka… Veröffentlicht am 09.07.2014 von Michael Vogel ♲ World and Science (WorldAndScience@twitter.com) : Exotic: This red arc, seen in infrared, is a giant shock wave created by a speeding star known as Kappa Cassiopeiae teilen teilen teilen teilen teilen