|  |  | Open Space on Astronomy Picture of the Day apod.nasa.gov — Orbiting 400,000 kilometers above the Earth, the Moon slid into Earth's shadow to begin last week's total lunar eclipse. Of course the International Space Station (ISS) slides into Earth's shadow every 90 minutes, the time it takes it to complete one orbit at an altitude of about 400 kilometers.Astronomy Picture of the DayMore... (Space) Comments Email Added 2008-02-28 16:40:36 SA007