SpaceMoon shadows on Saturn rings are a sign of spring Cassini has snapped its first pictures of moon shadows on Saturn's rings – a signal that spring is dawning in the northern hemisphere for the first time in nearly 30 years ¿ìè¶ÌÊÓÆµ
SpaceTunguska-sized space rock buzzes Earth On Monday, an asteroid about the size of the one that levelled the forest in Tunguska a century ago flew past Earth – well within the Moon's orbit ¿ìè¶ÌÊÓÆµ