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Copernical Team
Evaluating a Possible Drill Location
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Phantoms return from beyond the Moon with valuable data on cosmic radiation doses
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Colgate-Palmolive and NASA sign Space Act Agreement to boost off planet hygiene
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NASA taps Collins Aerospace to develop new spacesuits for Space Station
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Evolving time-tested technology to outmatch hypersonic weapons inside the atmosphere
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These freeze-drying algae can awaken from cryostasis, could help spaceflights go farther
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Japanese billionaire Maezawa announces crew of artists for lunar voyage
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Artemis I landing spot abandoned over weather; mission remains on schedule
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'Phantoms' from beyond the moon could provide valuable data on cosmic radiation doses
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![ZOHAR (in protective vest) and HELGA phantoms inside the Orion spacecraft. Credit: Source: NASA / Frank Michaux Phantoms return from beyond the Moon with valuable data on cosmic radiation doses](https://scx1.b-cdn.net/csz/news/800a/2022/phantoms-return-from-b.jpg)
The Orion spacecraft on the Artemis I mission is carrying, as part of the MARE experiment, two human "phantoms" equipped with numerous cosmic rays detectors. The information gathered by the detectors will for the first time verify the knowledge, crucial for the presence of humans in deep space, of the effects of cosmic rays on the health of the astronauts who are to live and work in an environment devoid of the protective effects of our planet's magnetosphere.
Of the numerous dangers lurking for astronauts undertaking long-distance space travel, among the most serious and at the same time the most difficult to eliminate, is exposure to harmful doses of cosmic radiation. Data collected during the MARE experiment (MATROSHKA AstroRad Radiation Experiment) will help ensure the safety of future deep space pioneers.
Space research: Is it feasible to reuse high salinity wastewater as a plant nutrient medium for plant hydroponics?
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![The growth appearance of the four cultivation plate during the experiment. Credit: <i>Space: Science & Technology</i> Is it feasible to resume high salinity wastewater as a plant nutrient medium for plant hydroponics in CELSS?](https://scx1.b-cdn.net/csz/news/800a/2022/is-it-feasible-to-resu.jpg)
The water cycle is an important part of the controlled ecological life support system (CELSS). It involves the supply of drinking water and plant irrigation water, and the recycling of urine, sanitary waste water, and air condensate water. Using urine and sanitary wastewater for plant irrigation is an effective form of wastewater reuse, but there are three main challenges.
Firstly, some salt content in wastewater, especially sodium chloride, is high, but it is not necessary for plant growth and may inhibit plant growth.
Secondly, the wastewater contains organic components such as surfactants, which also have a negative impact on plant growth.
Thirdly, if wastewater is used as the main nutrient source, the proportion of mineral elements in wastewater might be inconsistent with the proportion the plant growth needs, which will also affect the normal growth of plants.