This was not planned, but when I started to write this blog post I realized the event whose anniversary we mark today happened 200 years and one week after the historic petition I blogged about last Monday. It’s nice when serendipity happens.
Whereas last Monday’s blog post was about a petition written in 1775 as the American colonies were on the verge of war with Great Britain, today we jump forward to mark an historic joint space exploration venture between the United States and the Soviet Union.
Both events now seem like ancient history in light of where space exploration has taken us today, so it is sobering for me to realize the event I write about today happened a couple of months after I graduated from college. It seems like just yesterday! The passage of time is beyond my understanding.
What was the Apollo-Soyuz Test Project?
The Apollo-Soyuz Test Project was the first multinational space exploration project.
A little background
What made the Apollo-Soyuz Test Project particularly surprising and interesting was that the two participating countries – the United States and the Soviet Union – had been serious and unfriendly competitors in space travel since the late 1950s. The era was known as “the space race.” Each of the countries was determined to beat the other one in reaching every progression in space travel with the ultimate goal of putting a human being on the moon.
This is an over-simplification, but with the United States putting humans on the moon in 1969, the space race transitioned into a posture of sharing knowledge. It was an outgrowth of the “Détente” that started in 1969. Détente brought about more relaxed relations between the US and the Soviet Union.
Things get real in 1973
In the first half of 1973 the two countries announced the names of the astronauts and cosmonauts for the project as follows:
U.S. Commander Thomas P. Stafford
U.S. Command Module Pilot Vance D. Brand
U.S. Docking Module Pilot Donald K. “Deke” Slayton
US backup crew: Alan L. Bean, Ronald E. Evans, and Jack R. Lousma
Soviet Commander Aleksei A. Leonov
Soviet Flight Engineer Valeri N. Kubasov
Soviet backups: Anatoli V. Filipchenko and Nikolai N. Rukavishnikov
The crews trained together for the first time at NASA’s Johnson Space Center in Houston, Texas in July 1973.
Some details of the project
Soyuz
Launch: July 15, 1975, at 8:20 a.m. EDT
Launch Site: Baikonur Cosmodrome, Kazakhstan
Flight Crew: Alexey A. Leonov, Valery N. Kubasov
Landing: July 21, 1975
Apollo
Launch: July 15, 1975, at 3:50 p.m. EDT
Launch Site: Launch Complex 39, Kennedy Space Center, Florida
Flight Crew: Thomas P. Stafford, Vance D. Brand, Donald K. Slayton
Landing: July 24, 1975
Mission
Docking Time: July 17, 1975, at 12:12 p.m. EDT
Undocking Time: July 19, 1975, at 11:26 a.m. EDT
Total Duration of Joint Activities: 19 hours, 55 minutes
Orbital Inclination: 51.8 degrees
(Source: The Apollo-Soyuz Mission – NASA)
Both spacecraft made orbital adjustments over the first two days to pave the way for the two vehicles to dock in space. People all over the world watched the docking at 12:12 p.m. Eastern Daylight Time, July 15, 1975. Hatches on both vehicles were opened at 3:17 p.m.
Celebratory handshakes and commemorative gifts were exchanged between the astronauts and cosmonauts. U.S. President Gerald Ford and Soviet Communist Party General Secretary Leonid Brezhnev called them to express their congratulations. The astronauts and cosmonauts shared a meal and the hatches were closed for the day.
The following day Brand joined Kubasov in the Soyuz and Leonov joined Stafford and Slayton in the Apollo spacecraft. TV interviews and tours were given, experiments were conducted, and lunch was eaten. Afterwards, Kubasov and Brand left the Soyuz and joined Slayton in the Apollo. Leonov and Stafford then spent time in the Soyuz.
By mid-afternoon the historic exchanges were completed, there was another round of handshakes and goodbyes were said.
At 8:02 a.m., July 19, 1975 the spacecraft were undocked.
Quoting from the NASA website: “As the Apollo capsule backed away, it blocked the sun from the Soyuz vehicle, creating the first human-made eclipse and enabling the cosmonauts to photograph the sun’s corona. The two spacecraft then docked once more, with final undocking at 11:26 a.m.
The end of the successful project
The Soviet cosmonauts continued to conduct life-science experiments for another day. The Soyuz 19 landed near its target on July 21, 1975. It was the first time a Soviet space mission launch and landing were televised.
The Apollo capsule remained in orbit with the astronauts carrying out space-science and Earth-observing experiments for five days after the undocking. It was the last planned ocean landing for U.S. human spaceflight. Splashdown occurred at 5:18 p.m., Eastern Daylight Time on July 24, 1975.
Until my next blog post
What happened on Saturday was an attack on democracy. Let’s hope this week is less eventful than the weekend.
I hope you have a good book to read.
Enjoy some time with your friends and family.
Don’t forget the people of Ukraine.
Janet









