Astronomy Picture of the Day
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
December 26, 1996
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Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
December 26, 1996
Explanation: Carl Sagan died last Friday at the age of
62. Sagan
was the world's most famous astronomer. Among his many activities
as a scientist, he contributed to the discovery that the atmosphere
of Venus is prohibitively hot and
dense, and found evidence that Saturn's
moon Titan contains oceans stocked with the building blocks of life.
Sagan
was an outspoken proponent of the search for extra-terrestrial life,
including sending probes to other planets and
listening with large radio telescopes
for signals from intelligent aliens. Sagan's
outstanding ability to explain allowed almost a billion people
to better understand the cosmos in which they live.
Authors & editors:
Robert Nemiroff
(MTU) &
Jerry
Bonnell (USRA)
NASA Technical Rep.:
Jay Norris.
Specific rights apply.
A service of:
LHEA
at
NASA/
GSFC