الجمعة، 7 أغسطس 2015

Saturn’s moon Tethys streaked with red ‘arcs’ that may be gone soon

tethys arcs head
Cassini has found enormous arcs of red material on the surface of Tethys, and astronomers can't explain what they are.

sourse ExtremeTech http://ift.tt/1NeQAHP

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