Mosquito survives in outer spaceFebruary 22nd, 2009 - 10:58 am ICT by IANS
Moscow, Feb 22 (RIA Novosti) A Russian scientist has said that a mosquito had managed to survive in the outer space for 18 months.
Anatoly Grigoryev, vice president of the Russian Academy of Sciences, said: “We brought him (mosquito) back to Earth. He is alive, and his feet are moving.”
The mosquito did not get any food and was subjected to extreme temperatures ranging from minus 150 degrees Celsius in the shade to plus 60 degrees in the sunlight.
Grigoryev said the insect had been taken outside the International Space Station (ISS) on orders from the Institute’s scientists working on the Biorisk experiment. “First, they studied bacteria and fungi till a Japanese scientist suggested studying mosquitoes,” Grigoryev said.
Scientists from the Russian Academy of Sciences’ Institute of Medical and Biological Problems are assessing the impact of cosmic radiation on living organisms, one of which even managed to survive in outer space.
Since 2005, the Institute has been cooperating with two Japanese institutes under a grant and has been studying biological objects with preset properties, including barley and peas with high genetic resistance.
“Professor Takashi Okuda from the National Institute of Agro-Biological Science drew our attention to the unique, although short-lived, African mosquito (bloodworm), whose larvae develop only in a humid environment,” Grigoryev said.
Rains are rare in Africa, where puddles dry up before one’s eyes. However, this mosquito is well adapted to adverse local conditions, existing in a state of suspended animation when vital bodily functions stop almost completely.
When suspended animation sets in, water molecules are replaced by tricallosa sugar, which leads to natural crystallisation. The larvae were then sprayed with acetone, boiled and cooled down to minus 210 degrees Celsius, the temperature of liquid nitrogen. Amazingly, they survived all these hardships.
The Japanese also studied bloodworm DNA and found that it could be switched on and deactivated in 30 to 40 minutes. “This is facilitated by the crystallisation of biological matter,” Biologist Vladimir Sychev from the Institute of Medical and Biological Problems told RIA Novosti.
Sychev said scientists were interested in this mechanism, which makes it possible to assess the potential of living organisms subjected to multiple loads in outer space.
He said plant studies had made headway, but that living organisms were affected by gravitation, radiation and temperature fluctuations.
In the summer of 2007, Russian cosmonauts Fyodor Yurchikhin and Oleg Kotov placed a gray cylinder with 24 cups containing barley seeds, bacteria, crustaceans (Dafnia Magna), bloodworm larvae and other biological objects, on the outer ISS surface.
More than a year later, cosmonauts Sergei Volkov and Oleg Kononenko removed the cylinder and returned it to Earth.
The unique Biorisk experiment made it possible to study the impact of vacuum, subzero and hot temperatures and radiation on biological objects. But it is impossible to simulate these processes, Sychev stressed.
He said scientists were planning to send a number of microorganisms to Phobos, one of the Mars’ moons, under the Phobos-Grunt programme, and to return them to Earth. This will make it possible to assess their survival and reversible suspended-animation mechanisms.
Sychev also discussed various findings of the Biorisk project. First, it appears that panspermia, the hypothesis that “seeds” of life already exist all over the Universe, that life on Earth may have originated through these “seeds”, and that they may deliver or have delivered life to other habitable bodies, is quite plausible.
Second, it is becoming possible to choose various methods and options for placing biological objects in a state of suspended animation and transporting them on long-duration space missions.
An interplanetary Noah’s Ark would probably contain crystallised animals and other living organisms, thereby reducing feeding costs.
Although this is still in the realm of science fiction, researchers are currently preparing to sum up Russian and Japanese findings.
- Russia's ISS crew members complete spacewalk (Lead) - Aug 21, 2012
- Russian cosmonauts go on spacewalk - Aug 21, 2012
- Three ISS crew to return to earth - Mar 29, 2012
- Russia to send man to moon by 2030 - Apr 28, 2012
- New crew to ISS to conduct 43 scientific experiments - May 24, 2011
- Russia plans new Mars probe in 2018 - Feb 02, 2012
- Russia launches manned spacecraft to ISS - Nov 14, 2011
- Russian cosmonauts conduct space walk - Feb 17, 2012
- "Earthlings" to visit Martian moon Phobos - Feb 26, 2009
- Programme glitch led to Russian Mars probe failure: Report - Jan 31, 2012
- Russian cosmonauts take a six-hour spacewalk - Feb 17, 2012
- Lichen can survive in hostile space conditions - Jun 24, 2012
- New space station crew in orbit - May 15, 2012
- Russia launches cosmonaut recruitment drive - Jan 27, 2012
- Russia launches space freighter - Oct 31, 2011
Tags: acetone, biological objects, biological problems, biological science, bloodworm, bodily functions, cosmic radiation, extreme temperatures, genetic resistance, humid environment, international space station, japanese scientist, living organisms, okuda, ria novosti, russian academy of sciences, russian scientist, space station iss, temperature of liquid nitrogen, water molecules