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<\/p>\nWhile a lot of the focus when it comes to space travel beyond Earth orbit is on the spacecraft, multiple studies are underway to explore the human side of what NASA calls \u201cMoon to Mars Exploration.\u201d Those studies include physical health, mental health, and even training astronauts to recognize geology that could answer many questions about our place in space.<\/p>\n
The European Space Agency (ESA) is studying what rocks and minerals might be found on upcoming Artemis lunar missions, the German Space Agency (DLR) is looking at ways to improve blood flow during long-duration spaceflights by having people lay in bed, and NASA is studying what a year on Mars might do to a crew\u2019s mental health.<\/p>\n<\/p>\n
PANGAEA<\/p>\n
Two ESA astronauts are spending a week exploring a Norwegian fjord as a way to identify rocks and minerals that could be found on the Moon. This is part of a program called PANGAEA, or the Planetary Analogue Geological and Astrobiological Exercise for Astronauts.<\/p>\n
The program has been running since 2016 and involves a mix of classroom and field activities. This particular expedition brought ESA astronauts Alexander Gerst and Samantha Cristoforetti to a mountain that contains crystallized magma in Lofoten, located in the Arctic region of Norway.<\/p>\n
The two astronauts are testing a specialized form of mapping using satellite multispectral images to plan their routes and find unique targets to study. Known as remote sensing geology, astronauts are using multiple satellites to find rocks and minerals that might otherwise be missed.<\/p>\n
<\/p>\n
Three map views of the Lofoten area in Norway: satellite, geologic and spectral. (Credit: ESA)<\/p>\n
\u201cEach rock reflects sunlight in its own unique way, giving away a unique fingerprint of the material it is made of,\u201d said planetary geologist and PANGAEA instructor Riccardo Pozzobon. \u201cThis fingerprint can be detected by special types of satellite, revealing what is sometimes hidden in visible light.\u201d<\/p>\n
Space Technology (adsbygoogle = window.adsbygoogle || []).push({});<\/p>\n This technology will be implemented on the moon and will help scientists select future Artemis landing sites.<\/p>\n The reason the team is in this specific region of Norway is due to well-preserved samples on Earth of a rock abundant in the lunar highlands known as anorthosites.<\/p>\n While anorthosites can be hard to find on Earth since they are usually deep in the planet\u2019s crust, they are spread everywhere on the Moon. The rocks are easy to see when the light hits them because anorthosites are made of crystals.<\/p>\n \u201cScouting this fjord is like walking on the lunar surface,\u201d said planetary geologist and PANGAEA lead instructor Matteo Massironi. \u201cThe mountains resemble the molten ocean of the early Moon, when our natural satellite was a ball of fire with a melted surface on which rock-bergs of anorthosites were floating. We can see here what the lunar crust would look like.\u201d<\/p>\n ESA astronaut Alexander Gerst works with PANGAEA geologists in Norway. (Credit: ESA)<\/p>\n The team is taking inspiration from the later Apollo missions, in particular Apollo 15, 16, and 17, which produced the most science. In fact, Apollo 17 included Harrison Schmitt, the first \u2013 and so far only \u2013 geologist to walk on the Moon.<\/p>\n \u201cWhen we land on the Moon, we have to be effective field scientists, the best \u2018geological sensors\u2019 one could be in never-before explored lunar environments,\u201d said Gerst. \u201cThere are things that only human eyes can grasp.\u201d<\/p>\n The astronauts will perform up to four field trips over the course of just a few days.<\/p>\n SANS-CM<\/p>\n According to German researchers, more than half a liter of fluid rises into the upper half of the human body while in microgravity. On Earth, gravity normally helps pull those fluids to your lower extremities. Short-term side effects include having a puffy face as well as cold feet and a hot head.<\/p>\n However, the worry is the long-term side effects as the unusual fluid distribution causes changes in pressure. These can result in neurological effects that can affect an astronaut\u2019s vision.<\/p>\n This is the basis behind DLR\u2019s Spaceflight-Associated Neuro-Ocular Syndrome Countermeasures (SAMS-CM) bed rest study being conducted on behalf of NASA. While bed rest studies have been ongoing since 1993, scientists are trying newer technologies and techniques to help combat the fluid shift.<\/p>\n This year, DLR is conducting four test campaigns \u2013 with the fourth wrapping up recently. Each consists of 12 volunteers spending a total of 60 days working on the experiment. This includes two weeks of preparation followed by 30 days completely in bed and two weeks of follow-up exams and rehabilitation.<\/p>\n A SANS-CM participant undergoing an eye exam while inclined six degrees. (Credit: DLR)<\/p>\n The participants are confined to their bed which is tilted six degrees below the horizontal to best mimic how fluids would move inside the human body in microgravity. The participants are not allowed a pillow and must eat a specific diet with minimal choice in what they can eat.<\/p>\n The volunteers also have to perform daily tasks while still lying down including showering and going to the toilet.<\/p>\n One of the main pieces of technology being tested during these four rounds is the lower body negative pressure device (LBNP).<\/p>\n For two hours twice a day, the LBNP encapsulates participants from the waist down and applies a negative pressure of 25 mm Hg to draw blood toward the feet. The effectiveness is assessed through tests on aspects such as cardiovascular function, balance, muscle strength, and vision. Meanwhile, a control group would sit upright in a chair for three hours twice a day.<\/p>\n A participant inside the lower body negative pressure device. (Credit: DLR)<\/p>\n During the last two rounds of this most recent campaign, researchers tried a new technique. Each participant cycles for 45 minutes, all while still at the six-degree tilt, in an effort to get blood pumping to the legs. This is followed by venous occlusion, which uses pressure cuffs that squeeze the person\u2019s legs for six hours at a pressure of 50 mm Hg in order to keep the blood from going back into the upper body.<\/p>\n \u201cBoth countermeasures, the lower body negative pressure chamber and cycling combined with thigh cuffs for a total of six hours daily, have never been done before, and it was unclear how well they would work,\u201d said DLR scientist and professor Dominik Pesta. \u201cNow we can say that it works very well, and it is well-received by the terrestrial space travelers.\u201d<\/p>\n Researchers originally planned on having each person cycle alone with curtains separating them from other participants, but they found that using the machine together actually helped with mental well-being.<\/p>\n Two participants conducting their daily cycling while still lying down. (Credit: DLR)<\/p>\n \u201cIt quickly became apparent that the interaction and friendly competition among them increased motivation and made cycling more enjoyable,\u201d Pesta said.<\/p>\n To keep the participants entertained and engaged, they are allowed to do anything that can be done lying down including reading, watching TV, playing video games both online and offline, and talking to family.<\/p>\n CHAPEA<\/p>\n A crew of four is currently spending a year on \u201cMars.\u201d At least, that is the goal of the ongoing simulated mission.<\/p>\n The inaugural CHAPEA mission, or Crew Health and Performance Exploration Analog, began on June 25th and is now fully underway according to a post from NASA on July 10.<\/p>\n The volunteers will spend 378 days inside a 3D-printed habitat known as Mars Dune Alpha, located at the Johnson Space Center in Texas. Participants will live and work within the 1,700 square feet (158 square meters) space which includes four private crew quarters, areas for crop growth, exercise equipment, a galley, and two bathrooms.<\/p>\n![\"\"](\"https:\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2023\/07\/ESA_astronaut_Alexander_Gerst_during_geology_field_expedition-scaled.jpg\")
<\/p>\nSee Also<\/h4>\n
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