... In fact, watched from all over the night side of planet Earth, these regular celestial performances have entertained many casual skygazers. Still, this eye-catching picture of a lunar eclipse may look unfamiliar. ... Mercury Transits the Sun . ... How big is the Sun? ... The outer gasses of the star expelled into space appear from our vantage point as if we are looking down a helix. International Space Station in Transit . ... The Southern Sky from the International Space Station . ...