![]() Microgravity, for example, causes bone loss, which means that astronauts require more than the usual amount of nutrients like calcium and vitamin D. The human body also experiences physiological stresses in space, where it’s exposed to unusual conditions like microgravity and increased cosmic radiation for relatively long periods of time. Social activities, exercise, and sports here on Earth are also timed to fit that pattern, which means astronauts in space must cope with any differences. Nutrition in spaceĪstronauts don’t follow the normal circadian rhythm that most of us follow here on Earth, which consists of about eight hours of sleep followed by 16 hours of being awake, says Liang. And any nutrients extracted from the resulting waste will then be recycled into the hydroponic system, she adds. While the ingredients selected for this space salad are the best options available at this time, the team is now working on selectively breeding them to increase their nutritional value, decrease their required growing space, and increase their ability to quickly grow using hydroponic fertilizers.Īnything that can’t be eaten - such as the leaves and stalks of the peanuts and sweet potatoes - will be burned, says Liang. “Mars exploration will be only possible with fresh grown plants food payload for two to three years isn’t possible,” Shu Liang, a doctoral student at the University of Adelaide who led the new research, tells Astronomy. chose the ingredients based on their nutritional value, growth rate, water and space requirements, and the amount of inedible waste produced. ![]() Researchers from Australia, the U.K., and the U.S. The salad consists of seven ingredients - soybeans, poppy seeds, barley, kale, peanuts, sunflower seeds, and sweet potatoes, all in carefully measured amounts - that can be grown in small enclosures on a spacecraft and fulfill the nutritional needs of astronauts on long-duration trips. The spacecraft has also put Saturn’s rings and its moon Enceladus front and center - NASA has just reported Enceladus, along with Jupiter’s moon Europa, might host alien life in its subsurface oceans, based on the heat and energy sources that likely exist there.An international team of scientists have developed a “space salad” that can keep astronauts well-nourished on future missions into deep space. ![]() At only 19 miles across, about the distance between the bottom tip of Manhattan and the top of the Bronx in New York City, it absolutely pales in comparison to the size of Saturn, the second-largest planet in our solar system.Ĭassini has made headlines recently because it is in its final year of observing Saturn and its moons, squeezing in final photos before it runs out of fuel and NASA sends it into Saturn’s atmosphere to burn up dramatically. Astronomers didn’t even know it existed until 1980 when the Voyager 1 spacecraft observed it. There is still a lot to learn about Atlas. “These images are the closest ever taken of Atlas and will help to characterize its shape and geology.” The small moon orbits near its planet, “just outside the A ring - the outermost of the planet’s bright, main rings,” NASA said. Read: NASA Using Buzzsaws and Catapults to Find Aliens on Icy Moons The space agency has released thousands of images of Saturn and its natural satellites, not just Atlas, even though they have yet to be processed. NASA’s Cassini spacecraft snapped a bunch of up-close and personal images of Atlas this week during a flyby, about 7,000 miles from the UFO-looking moon. No, that’s not an alien saucer you’re seeing - it’s Atlas, one of Saturn’s many moons.
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