... To Fly Free in Space . ... What would it be like to fly free over the seas and clouds of Earth? The first to experience such an "untethered space walk" were NASA astronauts Bruce McCandless and Robert Stewart during Space Shuttle mission 41-B in 1984. ... Have you ever seen the band of our Milky Way Galaxy? ... In a clear sky from a dark location at the right time, a faint band of light is visible across the sky. This band is the disk of our spiral galaxy. ... Asteroid 1998 KY26 . ...