Explanation:
On September 12, astronaut Heidemarie Stefanyshyn-Piper
snapped photos of her colleague Joseph Tanner during the
STS-115 mission.
At the time, the spacesuited pair were working outside the shuttle
orbiter Atlantis, some 300 kilometers
above planet Earth.
Portions of two of the pictures
(S115-E-05750 and
S115-E-05753)
have been combined in this spectacular 3D image - a stereo
anaglyph intended to be viewed with
red/blue
glasses.
Included in the scene
reflected in Tanner's visor is
Stefanyshyn-Piper herself and the Sun shining above
the Earth's distant horizon.
