Heaven on Earth . ... Explanation: If sometimes it appears that the entire Milky Way Galaxy is raining down on your head, do not despair. It happens twice a day. ... Dark dust , millions of stars , and bright glowing red gas highlight the plane of our Milky Way Galaxy , which lies on average thousands of light years behind Earth 's yellow and green reflecting clouds . ... NASA Web Site Statements, Warnings, and Disclaimers . NASA Official: Jay Norris. ... A service of: LHEA at NASA / GSFC . ...