When Earth and the Moon Block SDO´s View of the Sun
(World News Science)

By Steele Hill NASA`s Goddard Space Flight Center On Sept 9-10, NASA`s Solar Dynamics Observatory witnessed a double lunar transit, when the Moon passed between the SDO spacecraft and the Sun twice in just a few hours. But did you know that the Earth can also get in the way? Here`s how Earth and Lunar transits work - and why they look...