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by STEREO project/NASA/Michael Bens - © Corbis. All Rights Reserved. - © STEREO project/NASA/Michael Bens/Kinetikon Pictures/Corbis
Lunar Transit of the Sun (one of three pictures)
25 Feb 2007 --- On February 25, 2007 there was a transit of the Moon across the face of the Sun - but it could not be seen from Earth. This sight was visible only from the STEREO-B spacecraft in its orbit about the sun, trailing behind the Earth. NASA's STEREO mission consists of two spacecraft launched in October, 2006 to study solar storms. The transit started at 1:56 am EST and continued for 12 hours until 1:57 pm EST. STEREO-B was then about 1 million miles from the Earth, 4.4 times farther away from the Mo --- Image by © STEREO project/NASA/Michael Bens/Kinetikon Pictures/Corbis