Search

Planet Earth

Thursday, 03-December-2020
....

Login form

untoten.reich

Latest

  • Allah Hoo - Hitesh Sonik feat Jyoti Nooran & Sultana Nooran (0)
  • शिव चालीसा, मंत्र Shiva mantra / Chalisa (26)
  • काली माँ महाकाली भद्रकाली मंत्र Kali Maa Mantra (25)
  • कृष्णा चालीसा krishna mantra / chalisa (10)
  • Maha लक्ष्मी मन्त्र Lakshmi mantra (21)
  • Mystery metal monolith vanishes from Utah desert (0)
  • Galaxy survives black hole's feast—for now (0)
  • UK's sole hydrogen car maker bets on green revolution (0)
  • Earth faster, closer to black hole in new map of galaxy (0)
  • The solar discs that could power Earth (0)
  • New Hubble data explains missing dark matter (0)
  • Trillion-transistor chip breaks speed record (0)
  • Egypt unveils scores of ancient coffins, statues found in Sa (0)
  • A hint of new physics in polarized radiation from the early (0)
  • Ice sheets on the move: Evidence of the interconnectedness (0)
  • An Atlantis might wait beneath the Great Lakes (0)
  • HS2: Medieval graffiti to 'ward off evil spirits' found (0)
  • Most popular

  • दुर्गा माँ मन्त्र Durga Maa Mantra / chalisa (35)
  • श्री गणेश मन्त्र Shri Ganesha mantra / chalisa (32)
  • शिव चालीसा, मंत्र Shiva mantra / Chalisa (26)
  • काली माँ महाकाली भद्रकाली मंत्र Kali Maa Mantra (25)
  • free TAROT/Iching/Numerology/Astro readings links (23)
  • vegetarian diet - pictures - information - guide thread (21)
  • Maha लक्ष्मी मन्त्र Lakshmi mantra (21)
  • Vedic Physics - What ancient Indians did for us (18)
  • funny video compilation (17)
  • Best of just for laughs (16)
  • श्री विष्णु मंत्र Sri Vishnu mantra / chalisa (14)
  • Chakra Meditation / Kundalini Yoga/ healing कुण्डलिनी योग (13)
  • श्री हनुमान Hanuman chalisa / mantra (13)
  • Astrology Yoga, bhava - Garga Hora by Sage Gargacharya (12)
  • All Zodiac signs explained (11)
  • श्री शनि चालीसा, मंत्र SRI SHANI CHALISA, mantra (10)
  • Sri Subramanya mantras (10)
  • Aryanblood

    ad


    bacterium survived on the outside of the Space Station - Forum

    [ New messages · Forum rules · Search · RSS ]
    • Page 1 of 1
    • 1
    Forum moderator: arya, dethalternate  
    Forum » Main » Science, Astronomy, Nature » bacterium survived on the outside of the Space Station
    bacterium survived on the outside of the Space Station
    ManuDate: Saturday, 14-November-2020, 11:36 AM | Message # 1
    --dragon lord--
    Group: undead
    Messages: 12126
    Status: Offline
    A year in space is no walk in the park. Just ask Scott Kelly, the American astronaut who spent a year on the International Space Station (ISS) in 2015.

    His long-term stay in space changed his DNA, telomeres, and gut microbiome, he lost bone density, and he still had sore feet three months later.

    But it's a whole other thing to survive in the naked space outside the protection of the ISS, where UV radiation, vacuum, huge temperature fluctuations, and microgravity are all imminent threats.

    So, it's quite a feat that a species of bacterium first found in a can of meat, Deinococcus radiodurans, was still alive and kicking after a year spent living on a specially designed platform outside the pressurized module of the ISS.

    Researchers have been investigating these mighty microbes for a while; back in 2015, an international team set up the Tanpopo mission on the outside of the Japanese Experimental Module Kibo, to put hardy bacterial species to the test.

    Now, D. radiodurans has passed with flying colors.

    The bacterial cells were dehydrated, shipped to the ISS, and placed in the Exposed Facility, a platform continuously exposed to the space environment; in this case, the cells were behind a glass window that blocked out UV light at wavelengths lower than 190 nanometers.

    "Results presented in this study may increase awareness regarding planetary protection concerns on, for instance, the Martian atmosphere which absorbs UV radiation below 190-200 nm," the team from Austria, Japan, and Germany wrote in their new paper.

    "To mimic this condition, our experimental setup on the ISS included a silicon dioxide glass window."

    This isn't the longest time D. radiodurans has been kept in these conditions – back in August we wrote about a sample of the bacterium being left up there for three whole years.

    But the team weren't trying for a world record, instead they were trying to uncover what makes D. radiodurans just so good at surviving in these extreme conditions.

    untotenawake
    Read more/full article/source - https://www.livescience.com/bacteri....on.html
     
    Forum » Main » Science, Astronomy, Nature » bacterium survived on the outside of the Space Station
    • Page 1 of 1
    • 1
    Search: