Scientists have discovered how microbes manage to survive in the sterile environment of the spacecraft
Source:
Rakesh Mogul, Professor of biological chemistry California Polytechnic University in Pomona, was the lead author of the study published in the journal Astrobiology, where scientists explain the cause of contamination of germs sterile conditions of the spacecraft after cleaning. In clean rooms of NASA developed and implemented a variety of measures of planetary defense to minimize biological contamination of the spacecraft. This is necessary because contamination of the earth's microorganisms can jeopardize the problem of detecting life on other planets, giving false positive results.
However, despite the long clearance procedures, molecular genetic analyses show that pure rooms are still a variety of microorganisms, microflora of the spacecraft, which includes bacteria, archaea, and fungi, says Mogul. Acinetobacter, a genus of bacteria, is among the dominant members of the microflora of the spacecraft.
To understand how the microflora of the spacecraft survives in sterile areas, the researchers analyzed several strains of Acinetobacter which were initially discovered on Mars Odyssey and Phoenix.
It turned Out that in conditions of limited nutrients, the majority of the tested strains grew and Biratnagar cleaning products used during spacecraft Assembly. The work has shown that these crops were growing on ethanol as the sole carbon source, demonstrating resistance to oxidative stress. This is important because oxidative stress is associated with searing and high radiation environments like those on Mars.
Test strains are also able to Birthlight isopropyl alcohol and Kleenol 30, two other cleaning products that are commonly used with these products potentially used as a source of energy for the microflora.
"We provide the community of planetary protection basic understanding of why all these microorganisms are in clean rooms," says Mogul. "Clean room is always something falls, but the question was why germs are in those rooms, and why there is a certain set of microorganisms which most often do."
Some of this work can be concluded? For greater planetary protection will require a more rigorous cleaning procedure, and creating new cleaning reagents that are compatible with the spacecraft in order to prevent the spread of terrestrial microbes "hitchhiker's guide to the galaxy."
Recommended
The Americans on the moon: what everyone should know?
the Upcoming cosmonautics day is my favorite holiday. It marks the triumph of the human mind: in just four thousand years Homo Sapiens went from hunter-gatherers to space explorers. 12 April 1961 Soviet cosmonaut Yuri Gagarin became the first man in ...
Why are some galaxies spiral shaped?
you Know what surprised me the most? The fact that we perceive the surrounding world as it is. Animals, plants, the laws of physics and the cosmos are perceived by many people as something so mundane and boring that they invent fairies, ghosts, monst...
Astronomers were able to see the death of another star system
In the cosmic ocean drifts a lot of mysteries about the existence of which we are unaware. One of these was uncovered five years ago, when astronomers have discovered a lonely star at a distance of 570 light years from Earth, the brightness of which ...
Related News
"Satellites-cubes" NASA went to Mars
throughout the weeks two satellites CubeSat — MarCO-A and MarCO-B — activated their propulsion system to get on the path to Mars. This trajectory correction maneuver allows the spacecraft to lay the exact route through space to th...
121 discovered a planet with possible habitable satellites
we've All heard about the search for life on other planets. But what about searches on other moons? In the work, which will soon appear in the Astrophysical Journal, scientists from University of California-riverside and the Unive...
China is building a new international space station by 2022
China started construction . Experts call it the last step in the beginning of the space race powers. China's Ambassador to the UN Shi Juncture have invited the world to participate in the project. «KKS belongs not only to Ch...
Conducted another successful test spaceplane Virgin Galactic
the Spaceplane VSS Unity made a second flight on supersonic speed, according to the American company Virgin Galactic. The tests deemed successful, was held on may 29, 2018 on the ground in the Mojave desert (CA). during the tests...
Russian scientist offered a grim explanation of the Fermi paradox
the Unimaginable size of the Universe has long made scientists to believe in an almost endless profusion of habitable worlds in it. If so, where is actually everybody? In General, this is the whole point of the so-called Fermi par...
Openly medication that protects the brain from exposure to cosmic radiation
One of the main problems of space exploration is not so much the lack of oxygen and food (everything is successfully synthesized and grown on the same ISS today), and cosmic radiation. Background radiation ionizing radiation outsi...
The U.S. Department of defense led the way warp engines and dark energy
In August 2008, the U.S. defense Department has proposed dozens of scientific groups to address issues of perspectives of studying a brand new aerospace technologies, including new methods of movement, takeoff and stealth. Among t...
Humanity has three chances to find the aliens
Since then, as the first people sent their views to the sky, to the planets, stars and galaxies beyond our home world, our imagination filled in the opportunity to find extraterrestrial life. However, when we approach this issue f...
The company's Elon musk will be to dig tunnels for the Martians?
Most people do everything possible to not live at a depth of three meters under the ground. But if you want to live on Mars, this may be your only affordable option. This week, the President and COO of SpaceX, Gwynne Shotwell made...
The scientist said, what is the future Solar system after the destruction of humanity
Forbes published an article by astrophysicist Ethan Siegel, in which a scientist predicts what will see the sky the inhabitants of the milky Way ten billion years after humanity will perish from the Big Bang. Siegel notes that the...
How much water is needed for life elsewhere in the Solar system?
the largest and deepest reservoir of all known never to have seen the mariners. It has no Islands and the coast, the wind raises the waves, the water is not running sun's glare. This dark ocean you will not find on any map of the ...
As will be flying the Mars helicopter NASA?
to send to the Red planet, the Rover is good. Send the helicopter is even better. Such a plan is NASA for 2020: along with the Rover. The idea is that the Rover rolling on the red desert, and before him flew a small helicopter. Th...
Elon Musk has shown an alternative to the Russian "Union"
the Founder of SpaceX Elon Musk has published on his page in Twitter a photo of the final design of the manned spacecraft Crew Dragon (Dragon 2) to be used for delivery of astronauts to the International space station. the Dragon...
How many galaxies we will never see?
One of the biggest surprises for mankind was not the fact that space is expanding, and what expanding faster and faster. The farther the galaxy is from us the faster they are removed from us. At some point, as you might guess, the...
The ISS will create the coldest place in the Universe
With the help of the carrier rocket "Antares" Orbital ATK space Agency NASA sent to the International space station the equipment for the experiment on extreme cooling of matter. Project Cold Atom Laboratory ("Laboratory cold atom...
The earth has not the biggest supply of water in the Solar system
Many used to think that Earth is the only planet in the Solar system, has an enormous water reserves. However, compared to some other places in the Solar system, our home world is a real wilderness, as from the point of view of th...
Why in our galaxy there is an alien Dyson spheres?
to Find life is perhaps the main and most desired goal of astronomy, preferably intelligent, to somewhere beyond Earth. Given the ease with which life spreads and multiplies on our home planet, and the presence of ingredients for ...
#photo of the day | New TESS telescope Agency NASA took the first photograph
NASA space Agency got the first shot made by a new space telescope called TESS (Transiting Exoplanet Survey Satellite), launched last month. The device is designed to search for new exoplanets. Photograph NASA employees received 1...
The chances of finding life on Jupiter's moon rose
Along with Mars, Jupiter's satellite Europa has long been concerned with the imagination of science fiction writers as a place that can Harbor life in the Solar system besides Earth. Scientific fact was the detection of subsurface...
Wallets with bitcoin Litecoin Cash scattered from space
may 17, 2018 from space over great Britain, France, Belgium and the Netherlands threw the "Golden tickets", containing more than 160 000 units of Litecoin Cash. Such an unusual step to attract people to your project, decided the d...
Comments (0)
This article has no comment, be the first!