... WR 134 Ring Nebula . ... It highlights the bright edge of a ring-like nebula traced by the glow of ionized hydrogen and oxygen gas. ... To help find out, NASA launched the Nuclear Spectroscopic Telescope Array (NuSTAR) satellite into Earth orbit last week. ... Milky Way Above Easter Island . ... No one is sure. ... Data from the Galileo spacecraft that orbited Jupiter from 1995 to 2003 later confirmed that these rings were created by meteoroid impacts on small nearby moons. APOD Turns 17 . ...