1037900492
October 27, 2015
Categories: ISS, Science, Space, USA

Analyzing the composition of dust samples from the ISS biologists found potentially pathogenic bacteria able to cause serious diseases under conditions of zero-gravity.

Before going to the ISS all cosmonauts and astronauts pass strict medical check; in the framework of these procedures their bodies are cleaned of all bacteria both dangerous and harmless. Such measures are necessary since the scientists cannot predict how these bacteria will behave under conditions of weightlessness, carbon dioxide surplus and space rays and how cosmonauts’ immune system weakened by space flight factors will react to it.

Kasthuri Venkateswaran and his colleagues from NASA Jet Propulsion Laboratory, Pasadena, USA, tried to answer this question comparing the bacteria from real ISS to those from space life simulators based on Earth.

The scientists analyzed dust and fabric samples from ISS filters using most advanced DNA transcript systems that enable to detect bacteria and determine its family.

It turned out that there are many bacteria onboard the station indeed, with its species composition being much different from microorganisms living in ISS mock-up based on the Earth. For instance the scientists found onboard the station large quantity of actinobacteria, potentially dangerous for ISS habitants since to these belong diphtheria and itching agents.

On the other hand there are no firmicutes onboard the ISS in contrast with its Earth-based copy (firmicutes include e.g. staphylococcus, aphthous fever, botulism, tetanus and other dangerous deceases agents). This points to the fact that different bacteria behave under space flight conditions in different ways. The scientists say these results will enable the specialists to elaborate new standards to protect the astronauts and cargoes.

 

comments

More from this category:
Ples
March 21, 2014

Preparations for the launch of new generation space rocket Angara were intensified, minister of Defense deputy Yuri Borisov reports. We’ve made a lot to increase…

full story
cGBa1VSODxU
October 24, 2014

Roscosmos cosmonauts Mukhtar Aimakhanov, Oleg Blinov, Pyotr Dubrov, Sergey Korsakov, Dmitry Petelin, Andrey Fedyayev, Nickolay Tchub and cosmonaut candidate Anna Kikina will be having mountain…

full story
Angara5_s
November 26, 2014

Angara-5 heavy booster passed complex tests at the launchpad of Plesetsk spaceport, – Russian Ministry of Defence Aerospace Defence troops press-office representative colonel Alexey Zolotukhin…

full story
M_y_P_tAo7Q
December 10, 2014

Last weekend specialists started general assembling of Proton-M booster in 92-A50 integration building. The booster  will launch Russian Yamal-401 telecommunication satellite in mid-December, – Khrunichev…

full story
DSC_554811_m
November 23, 2015

On Friday, November 20, GCTC specialists summed up the results of ISS-46/47 main and back-up crews exams. The main crew comprising Roscosmos cosmonaut Yuri Malenchenko,…

full story
1128090228
August 27, 2015

For safety reasons new ISS crew will approach and dock with station in accordance with the traditional 2-days scheme, – Roscosmos reported. ISS crews used…

full story
63M8q8CSROU
July 28, 2014

Russian biosatellite Foton-M with biological materials onboard was launched on July 19, at 00.50, Moscow time from 31 launchpad of Baikonur spaceport and separated from…

full story
Mars-One
December 12, 2013

American Company Lockheed Martin and British Surrey Satellite Technology Ltd. got the contract for development of Mars landing probe and orbital device that will be…

full story