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Chix in Space: When Kentucky Fried Chicken Hitched a Ride on the Space Shuttle

  • Writer: Aeryn Avilla
    Aeryn Avilla
  • Jan 28, 2021
  • 5 min read

Updated: 2 days ago

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Animals have been flying in space long before humans. Since the late 1940s, countries all across the world have sent all kinds of creatures and critters into the vast unknown, studying the physiological effects of microgravity, radiation, and high stress on living organisms. The Soviet Union used stray dogs, the most famous of which were Laika, Strelka, and Belka. The United States used different varieties of monkeys including Ham the chimpanzee and Miss Baker the squirrel monkey. Even France sent the first cat into space, Félicette. But what about birds?


Chix in Space patch from the STS-51L mission press kit (KFC – my photo)
Chix in Space patch from the STS-51L mission press kit (KFC – my photo)

The first avian space experiment was performed by the Soviet Union in 1979. Soyuz 32 carried fertilized Japanese quail eggs to the Salyut 6 space station to study the impact of microgravity on the development of embryos and to determine whether a Japanese quail could hatch and grow in space, serving as a viable food source for cosmonauts on long-duration missions.


In the early 1980s, an eighth grader from Indiana named John Vellinger designed a science experiment to investigate how microgravity effected the development of chicken embryos. Normally on Earth eggs need to be turned periodically by a hen because gravity pulls the yolk to the bottom of the shell. Vellinger wondered if a microgravity environment would change the way embryos needed to be cared for. In 1983, while he was in high school, the experiment would presented at the Shuttle Student Involvement Program contest hosted by NASA and the National Science Teachers Association and won at the national level. The space agency began hunting for a corporate sponsor to provide funding for the experiment to fly in space. In 1985, when Vellinger was a freshman at Purdue University studying mechanical engineering, NASA arranged for him to pitch his idea to the fast-food giant Kentucky Fried Chicken (KFC). They ate it up.


John Vellinger with model Space Shuttle for Chix in Space
Vellinger with chicks and a KFC-branded model Space Shuttle (via Purdue University)

KFC sponsored $50,000 and the partnership made more sense than you'd initially think. In 1985, the astronauts of STS-51F Challenger drank Coca-Cola and Pepsi from cans specially designed for consumption in microgravity. The experiment was part of a huge marketing campaign and the most publicized aspect of the mission [1]. Coca-Cola actually flew in space a couple more times in the 1990s and a Pepsi commercial was shot on Space Station Mir during an extravehicular activity. KFC's sponsorship of Vellinger's experiment, like Coke's and Pepsi's trip into space, would be great for public relations.


Chix in Space, officially called the Student Experiment 83-9 Chicken Embryo Development in Space, initially consisted of twelve fertilized White Leghorn chicken eggs nested in an incubator. KFC provided one of their engineers, Mark Deuser, to help Vellinger construct the incubator and the eggs were fertilized immediately before launch. Eight would be exposed to radiation while in orbit with the remaining four housed in lead shielding to minimize exposure. Vellinger would tend to a dozen control eggs back on Earth.


Chix in Space launched aboard STS-51L Challenger on January 28, 1986. Payload specialist and soon-to-be first teacher in space Christa McAuliffe was in charge of the experiment. 73 seconds after liftoff, unfortunately, Space Shuttle Challenger broke apart and the lives of all seven crew members and twelve chicken embryos were lost.


John Vellinger with his Chix in Space incubator
Vellinger with his Chix in Space incubator (KFC)

Fortunately for Vellinger, NASA and KFC were still interested in his experiment and allowed him and his team to reconstruct and refine the incubator that was lost. The new Chix in Space consisted of 32 fertilized broiler hen eggs. Half of the embryos were fertilized and incubated nine days before launch while the other half were fertilized and incubated only two days before launch. This was so they could be studied at different stages of development. Three years after the loss of Challenger and the original Chix in Space, STS-29 Discovery launched on March 13, 1989 on a five-day mission. Vellinger watched both Shuttle launches from Florida. STS-29 pilot and Purdue graduate John Blaha operated the experiment while in orbit. Half the eggs from both incubation groups were allowed to develop fully back on Earth while the other half were dissected. A full incubation period is 21 days. A week after return, the first chick hatched. He was named Kentucky and lived out the rest of his days at the Louisville, Kentucky. He was one of eight space chicks who survived their trip and according to Vellinger, all eight were from the batch fertilized nine days before launch. No eggs from the group incubated two days before launch hatched.


Chix in Space incubator in space during STS-29
Blaha operates the Chix in Space incubator—a Colonel Sanders decal, Vellinger's name, and the experiment's name are visible (NASA)

Avian space experiments continued throughout the 1990s by the Soviet Union and later Russia. On March 22, 1990 the first healthy quail chick hatched on Space Station Mir and became the first bird in space and the first vertebrate to be born outside Earth's atmosphere. Eight chicks hatched in total but the baby birds could not feed themselves because they could not latch onto anything in the microgravity environment. For later quail experiments onboard Mir, the birds were equipped with little harnesses so they could feed without human help, but since they showed no interest in mating, the use of quails as a long-term food source was not feasible.


Soyuz TM-9's quail chick
One of the quail chicks hatched onboard Space Station Mir (via finchwench.wordpress.com)

Today, the Chix in Space incubator is on display at the Cosmosphere Museum in Hutchinson, Kansas. Vellinger and Deuser cofounded the Louisville-based company Techshot Inc., an engineering firm that develops payloads for space-based research. Their devices flew on later Space Shuttle missions and SpaceX Dragon spacecraft and operated on the International Space Station. One in particular that is similar to Chix in Space is NASA's Rodent Research hardware, which studies mice onboard the ISS.




Author's Note: Please take time today, no matter which day it is, to honor the memories of those who gave their lives for the exploration of space. May humankind continue the exploration of space in their honor.


"The future doesn't belong to the fainthearted; it belongs to the brave." – Ronald Reagan



[1] Though personally I think the mission being the first and only abort-to-orbit of the Shuttle program is more interesting.


Bibliography

  • Pearlman, Robert. “When KFC *Actually* Went to Space: Before Zinger 1, There Was 'Chix in Space': CollectSPACE.” CollectSPACE.com, 29 June 2017, www.collectspace.com/news/news-062917a-kfc-zinger-chix-space-mission.html.

  • Pike, Jared and Giles, Nicole Elizabeth. “John Vellinger: From Chix in Space to a Company in Space.” Purdue University, September 28, 2018. https://www.purdue.edu/space/john-vellinger-from-chix-in-space-to-a-company-in-space/

  • Valentine, Katie. “The Amazing Story of the Cold War Space-Egg Race.” Audubon, 15 Dec. 2017, www.audubon.org/news/the-amazing-story-cold-war-space-egg-race.

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