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Tag: protect

  • Could water protect astronauts from radiation? 💧

    Could water protect astronauts from radiation? 💧

    It turns out water is great at blocking radiation. But using water as a protection system has its challenges.

    A team from the Polymer Chemistry and Biomaterials Group (PBM) at Ghent University in Belgium is looking into a new option: superabsorbent polymers (SAPs).

    These materials might be safer and more effective than water alone.

    SAPs can soak up hundreds of times their weight in liquid, similar to those “grow monster” toys that expand in water. When swollen with liquid, they’re called “hydrogels.”

    📹 ESA – European Space Agency
    📸 Lenny Van Daele/Johan Dubruel

  • Perseverance Rover: How We Protect Mars From Earthly Germs

    Perseverance Rover: How We Protect Mars From Earthly Germs

    As we explore Mars and other places in the solar system that might have life, scientists who work in Planetary Protection are busy making sure that we don’t contaminate them. While engineers prepare the Perseverance Rover for launch, Lisa Pratt, NASA’s Planetary Protection Officer, is making sure that it’s not carrying too many spores — cells that could re-activate and transport Earthly bacteria to Mars. It’s especially important to keep Perseverance clean because it will collect samples on Mars that will one day return to Earth. Learn what your hand sanitizer has in common with NASA’s clean rooms, and how scientists are thinking about protecting Mars in terms of future human missions.

    Listen to episodes of the Gravity Assist podcast at https://www.nasa.gov/gravityassist

  • Earth observation to protect natural landscapes | ECOPOTENTIAL

    Earth observation to protect natural landscapes | ECOPOTENTIAL

    Featuring ECOPOTENTIAL, a European funded project that focuses on a set of internationally recognised protected areas, this video describes how the unprecedented availability of satellite data allow scientists to understand large scale changes in our environment and how best to protect it.

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