The
Face on
Mars
This
image,
showing
what looks
to be a
human face
sculpted
on the
martian
surface,
was
produced
using data
from
NASA's
Viking 1
orbiter in
1976.
Described
in a press
release as
a
"face-like
hill"
it caused
some to
offer the
sensational
speculation
that it
was an
artificial
construct
built by
an
intelligent
civilization
on Mars!
As a
result,
this image
was
splashed
across the
covers of
many
grocery
store
tabloids
at the
time. A
detailed
analysis
of
multiple
images of
this
feature
reveals a
natural
looking
martian
hill whose
illusory
face-like
appearance
depends on
viewing
angle and
angle of
illumination.
Picture
Credit:
NASA,Viking
Project.
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