... With the graceful arc of Earth's limb in the background, the Hawaiian Island archipelago is visible in this stunning photo taken by the astronauts onboard the shuttle Discovery in October of 1988. ... Comet Ikeya Zhang Meets The ISS . ... Still catching the Sun's rays, the International Space Station (ISS) cruises across the early evening sky above Tomahawk, Wisconsin, USA. ... The Trifid Nebula from AAO . ... The red-glowing gas results from high-energy starlight striking interstellar hydrogen gas....