... 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. ... Also known as M20, this photogenic nebula is visible with good binoculars towards the constellation of Sagittarius. ...