The shadow of the moon sweeps a dark ellipse across Siberia and the Arctic Ocean. Hardy travelers shivered through a spectacular solar eclipse along the path of the umbra, or central part of the moon's shadow, where the moon completely covers the sun's disk, making the beautiful streamers of the solar corona visible for a brief period.

In case anybody asks.... No, there weren't two earths close together in the picture. The image is a montage. Actually, the two earths were much farther apart... =) (Original images courtesy NASA-Goddard Space Flight Center).