Editor's Note: Precisely
50 years ago, from the time of the posting of this blog-post, NASA's
Apollo 8 spacecraft became the first space mission with humans to go
behind Earth's Moon, out of sight and out of touch with Earth, and
enter lunar orbit: 4:59 a.m. Eastern Standard Time (EST) / 9:59
Coordinated Universal Time (UTC) on Tuesday, 1968 December 24, Christmas Eve. The
following is a brief essay regarding the historical and scientific
significance of the Apollo 8 mission. The author of this essay is
Francis G. Graham, Professor Emeritus of Physics, Kent State
University, and Founder of the American Lunar Society. Earlier in his
career, he was a Planetarium and Observatory Lecturer at the original
Buhl Planetarium and Institute of Popular Science (a.k.a. Buhl
Science Center), Pittsburgh's science and technology museum from 1939
to 1991.
50th ANNIVERSARY: THE INCREDIBLE LEGACY OF APOLLO 8
By Francis G. Graham, Professor Emeritus of Physics, Kent State University
and Founder of the American Lunar Society
Reporting for SpaceWatchtower
50th ANNIVERSARY: THE INCREDIBLE LEGACY OF APOLLO 8
By Francis G. Graham, Professor Emeritus of Physics, Kent State University
and Founder of the American Lunar Society
Reporting for SpaceWatchtower
December
21, 1968 was the shortest day of the year for areas of Planet Earth
north of the equator. But it was the longest stretch of a day in
history. As Carl Sagan pointed out, people in the 25th
century, if there are any, will not remember the causes of the war in
Afghanistan or the political machinations of the Trump
administration. Instead, they will remember that in the late 1960’s
there were the first expeditions of humans to the Moon and the space
beyond Earth orbit.
It
was on that day that Apollo 8, the first human expedition to the
Moon, left the Earth. There was no landing, the flight was a flight
around the Moon, in lunar orbit. The rocket that propelled it there
was a great marvel, the 360-foot-tall Saturn V, using hydrocarbons
and liquid oxygen as fuel. Of the entire 360-foot-tall rocket, only
the 12-foot-tall Command Module capsule returns to Earth from the
Moon. Consider that
29/30
of
the length is discarded along the way, and an even larger amount of
the mass. It is quite possible in the year 4200 some Thor Heyerdahl
will try to prove that the Ancient Americans could have reached the
Moon on such improbable chemical rockets.
The launch of Apollo 8 occurred Saturday, 1968 December 21 at 7:51:00 EST / 12:51:00 UTC, on the day of the Winter Solstice in the Northern Hemisphere (which occurred at 1:59 p.m. EST / 18:59 UTC). (Image Source: NASA)
The
astronauts on Apollo 8 are legends. Colonel Frank Borman of the U.S.
Air Force, part of the Gemini 7 mission three years prior, was the
Command Pilot; Captain James A. Lovell, a Naval Pilot, part of the
1966 Gemini 12 mission, was the Command Module Pilot, and would
return to the region of the Moon again in Apollo 13. Lovell was the
only man who could claim to have visited the Moon twice,
with
the exception of Baron von Munchausen, who notably also claimed that
distinction, but with far less veracity. Finally, there was Major
William Anders, an Air Force pilot, who was designated the Lunar
Module Pilot, but in Apollo 8 he had no Lunar Module to pilot.
Apollo
8 was not initially supposed to be a lunar mission, but an Earth
orbital one. Instead, Apollo 9 was the developmental checkout
mission in Earth orbit that was to have been originally Apollo 8.
However, it is not generally known that there were geopolitical
reasons why Apollo 8 was designated as a lunar orbit mission in
December, 1968. In Kazakhstan, the Soviet Union had a lunar orbit
mission or a circumlunar mission on the launch pad being prepared for
launch. A Soyuz craft was on top of a Proton booster, and could then,
or even now, perform a lunar circumlunar mission. Modified Soyuz
craft were previously sent on unmanned circumlunar missions, called
the Zond series, one even carried animals and returned them safely to
Earth. A painting of a Soyuz craft in the National Air and Space
Museum shows a rear toroidal fuel tank, which would have been used on
the circumlunar mission.
Problems
with the manned Zond circumlunar mission kept it on the ground in
December, 1968, and then Apollo 8 became the first lunar mission.
The manned Zond was then canceled.
The
Apollo 8 mission accomplished its objectives: engineering tests of
the Apollo-Saturn V system, lunar photography and panoramic camera
imaging from lunar orbit. Most importantly was the photography of
the Earth from lunar orbit, which truly transformed the perspective
of many people. After all, until Apollo 8, and starting with
Magellan’s expedition in 1522, there had been only
circumnavigation of the Earth, albeit successively faster. Apollo 8
was topologically different, it was an orbit of the Moon.
With Apollo 8, we saw the Earth whole and distant, rising above the
lunar surface as Apollo 8 orbited.
On
Christmas night, with the Moon and Earth in the television camera,
passages from the Bible were read by the astronauts. There were, to
be sure, some who objected on separation of state issues, as Apollo
was a government program. But most Americans were deeply touched by
the reading and the view from space.
But
when one considers the U.S. Constitution, one wonders why there
should have been an Apollo at all. The powers of the government in
the Constitution, e.g common defense, courts, etc. do not include
space travel. There was no military utility in the Moon. Normally in
America new transportation technology was pioneered by private
enterprise; in the pre-Apollo realistic George Pal movie Destination
Moon and
in the prophetic Fritz Lang silent film Frau
im Mond
this was the case. But in Apollo, we saw a government financing the
trips to the Moon; ironic since in the opposing Communist system the
government also financed space travel. Now we are seeing a shift
toward private financing of space travel 50 years later, although,
even in the time of the Apollos, communications satellite technology
was privately financed to a large degree.
Apollo
8 was truly revolutionary, and the further efforts of 1969-72 built
upon it. We can only wonder when a return to the Moon will occur,
and who will do it.
Internet Links to Additional Information ---
Apollo 8 -
Link 1 >>> https://www.nasa.gov/mission_pages/apollo/missions/apollo8.html
Link 2 >>> https://www.nasa.gov/topics/history/features/apollo_8.html
Link 3 >>> https://solarsystem.nasa.gov/missions/apollo-8/in-depth/
Link 4 >>> https://en.wikipedia.org/wiki/Apollo_8
Related Blog Posts ---
"45th Anniversary: Apollo 8 Orbits the Moon Christmas Eve." 2013 Dec. 24.
Link >>> http://spacewatchtower.blogspot.com/2013/12/45th-anniversary-apollo-8-orbits-moon.html
"45 Years Ago: Man Lands on the Moon !" 2014 July 20.
Link >>> https://spacewatchtower.blogspot.com/2014/07/45-years-ago-man-lands-on-moon.html
Source: Francis G. Graham, Professor Emeritus of Physics, Kent State University and Founder of the American Lunar Society. Earlier in his career, Planetarium and Observatory Lecturer at the original Buhl Planetarium and Institute of Popular Science (a.k.a. Buhl Science Center), Pittsburgh's science and technology museum from 1939 to 1991.
Monday, 2018 December 24.
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gaw
Glenn A. Walsh --- < http://buhlplanetarium2.tripod.com/weblog/spacewatchtower/gaw/ >
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Project Director, Friends of the Zeiss: < http://buhlplanetarium.tripod.com/fotz/ >
SpaceWatchtower Editor / Author: < http://spacewatchtower.blogspot.com/ >
Formerly Astronomical Observatory Coordinator & Planetarium Lecturer, original Buhl Planetarium & Institute of Popular Science (a.k.a. Buhl Science Center), Pittsburgh's science & technology museum from 1939 to 1991. Formerly Trustee of the Andrew Carnegie Free Library and Music Hall, Pittsburgh suburb of Carnegie, Pennsylvania.
Author of History Web Sites on the Internet --
* Buhl Planetarium, Pittsburgh:
< http://www.planetarium.
* Adler Planetarium, Chicago:
< http://adlerplanetarium.
* Astronomer, Educator, Optician John A. Brashear:
< http://johnbrashear.tripod.com >
* Andrew Carnegie & Carnegie Libraries:
< http://www.andrewcarnegie.
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ReplyDeleteI have very fond memories of having corresponded with Dr. Graham in the 1980's. I was a member of the American Lunar Society back when it was still known as "The Pennsylvania Selenological Society." I am now hearing that the ALS has folded, which if true is very sad. Thank you, Dr. Graham, for the wonderful by-mail interaction we had during those years. I'll always remember your kindness and wisdom.
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