Second Mercury Flyby
After looping once around the Sun while Mercury completed two orbits, Mariner 10 flew by Mercury again on September 21, 1974, at a more distant range of 48,069 km (29,869 mi) below the southern hemisphere.
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Second Mercury encounter
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Mosaic of images from the second encounter, covering the equator to the south pole
Read more about this topic: Mariner 10
Famous quotes containing the word mercury:
“The mercury sank in the mouth of the dying day.
What instruments we have agree
The day of his death was a dark cold day.”
—W.H. (Wystan Hugh)