... 11.04.2012 . ... Credit Copyright: Michael Kunze Explanation: Why don't those stars move? Stars in the sky will typically appear to rise and set as the Earth turns. ... Called geostationary satellites , they don't fall down because they do orbit the Earth -- they just orbit at exactly the same speed that the Earth rotates . ... The satellites also all appear on a single line -- actually the projection of the Earth's equator onto the sky. ... April . ... April 2012 . ... 2011 2012 . ...