Animal astronauts

Before humans actually went into space, one of the prevailing theories of the perils of space flight was that humans might not be able to survive long periods of weightlessness. For several years, there had been a serious debate among scientists about the effects of prolonged weightlessness. American and Russian scientists utilized animals - mainly monkeys, chimps and dogs - in order to test each country's ability to launch a living organism into space and bring it back alive and unharmed.

On June 11, 1948, a V-2 Blossom launched into space from White Sands, New Mexico carrying Albert I, a rhesus monkey. Lack of fanfare and documentation made Albert an unsung hero of animal astronauts. On June 14, 1949, a second V-2 flight carrying a live Air Force Aeromedical Laboratory monkey, Albert II, attained an altitude of 83 miles. The monkey died on impact. On August 31, 1950, another V-2 was launched and carried an unanaesthetized mouse that was photographed in flight and did not survive impact. On December 12, 1949, the last V-2 monkey flight was launched at White Sands. Albert IV, a rhesus monkey attached to monitoring instruments, was the payload. It was a successful flight, with no ill effects on the monkey until impact, when it died.

On September 20, 1951, a monkey named Yorick and 11 mice were recovered after an Aerobee missile flight of 236, 000 feet at Holloman Air Force Base, New Mexico. Yorick got a fair amount of press as the first monkey to live through a space flight.

On May 22, 1952, two Philippine monkeys, Patricia and Mike, were enclosed in an Aerobee nose section at Holloman Air Force Base. Patricia was placed in a seated position and Mike in a prone position to determine differences in the effects of rapid acceleration. Fired 36 miles up at a speed of 2000 mph, these two monkeys were the first primates to reach such a high altitude. Also on this flight were two white mice, Mildred and Albert. They were inside a slowly rotating drum where they could "float" during the period of weightlessness. The section containing the animals was recovered safely from the upper atmosphere by parachute. Patricia died of natural causes about two years later and Mike died in 1967, both at the National Zoological Park in Washington, DC.

The Soviets kept close tabs on what the U.S. was doing with their V-2 and Aerobee missile projects during the early 1950's. Basing their experiments on American biomedical research, Soviet rocket pioneer Sergei Korolev, his biomedical expert Vladimir Yazdovsky, and a small team used mice, rats and rabbits as one-way passengers for their initial tests. They needed to gather data to design a cabin to carry a human being into space. Eventually they chose small dogs for this phase of testing. Dogs were chosen over monkeys because it was felt that they would be less fidgety in flight. A test with two dogs would allow for more accurate results. They chose females because of the relative ease of controlling waste.

Between 1951 and 1952, the Soviet R-1 series rockets carried nine dogs altogether, with three dogs flying twice. Each flight carried a pair of dogs in hermetically sealed containers that were recovered by parachute. Of these early space-bound hounds, a few have been remembered by name.

On August 15, 1951, Dezik and Tsygan ("Gypsy") were launched. These two were the first canine suborbital astronauts. They were successfully retrieved. In early September 1951, Dezik and Lisa were launched. This second early Russian dog flight was unsuccessful. The dogs died but a data recorder survived. Korolev was devastated by the loss of these dogs. Shortly afterwards, Smelaya ("Bold") and Malyshka ("Little One") were launched. Smelaya ran off the day before the launch. The crew was worried that wolves that lived nearby would eat her. She returned a day later and the test flight resumed successfully. The fourth test launch was a failure, with two dog fatalities. However, in the same month, the fifth test launch of two dogs was successful. On September 15, 1951, the sixth of the two-dog launches occurred. One of the two dogs, Bobik, escaped and a replacement was found near the local canteen. She was a mutt, given the name ZIB, the Russian acronym for "Substitute for Missing Dog Bobik." The two dogs reached 100 kilometers and returned successfully. Other dogs associated with this series of flights included Albina ("Whitey"), Dymka ("Smoky"), Modnista ("Fashionable"), and Kozyavka ("Gnat").

On November 3rd, 1957, Sputnik 2 blasted into Earth orbit with a dog named Laika aboard. Laika, which is Russian for "Husky" or "Barker, " had the real name of Kudryavka ("Little Curly"). In the U.S. she was eventually dubbed "Muttnik." Laika was a small, stray mongrel picked up from the street. She was hastily trained and put aboard in a metal carrier under the second Sputnik sphere. There was no time to work out any reentry strategy and Laika expired after a few hours. Sputnik 2 finally burned up in the outer atmosphere in April 1958.

Back in the U.S., on April 23, 1958 a mouse was launched in a Thor-Able "Reentry 1" test as the first launch in the Mouse in Able (MIA) project. It was lost when the rocket was destroyed after launch from Cape Canaveral. The second launch in the series was MIA-2, or Laska, in a Thor-Able "Reentry 2" test on July 9, 1958. Laska endured 60G acceleration and 45 minutes of weightlessness before perishing. Wilkie, the third mouse in the MIA series, was lost at sea after the flight from Cape Canaveral on July 23, 1958. Fourteen mice were lost when the Jupiter rocket they were aboard was destroyed after launch from Cape Canaveral on September 16, 1959.

Gordo, a squirrel monkey, was catapulted 600 miles high in a Jupiter rocket, also on December 13, 1958, one year after the Soviets launched Laika. Gordo's capsule was never found in the Atlantic Ocean. He died on splashdown when a flotation mechanism failed, but Navy doctors said signals on his respiration and heartbeat proved humans could withstand a similar trip.

Able, an American-born rhesus monkey, and Baker, a South American squirrel monkey, followed on May 28, 1959, aboard an Army Jupiter missile. Launched in the nose cone, the two animals were carried to a 300-mile altitude, and both were recovered unharmed. However, Able died June 1 on the operating table from effects of anesthesia...