... A Total Solar Eclipse Over China . ... What's that black dot over the Sun? The Moon. ... X Rays from the Cats Eye Nebula . ... Haunting patterns within planetary nebula NGC 6543 readily suggest its popular moniker -- the Cat's Eye nebula. Starting in 1995, stunning false-color optical images from the Hubble Space Telescope detailed the swirls of this glowing nebula, known to be the gaseous shroud expelled from a dying sun-like star about 3,000 light-years from Earth. ... Galaxies on a String . ...