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  • Yup, it's that time again,

  • the International Space Station is in need of fresh cargo and experiments.

  • Northrop Grumman's Antares rocket is getting ready to launch CRS-15

  • and there are some game changing experiments

  • that will help us further our knowledge of how humans can adapt to long term space travel;

  • from material testing, muscle atrophy in worms,

  • and even grape juice fermentation...and no, it's not exactly wine.

  • Northop Grumman is a longtime favorite as far as NASA resupply missions go.

  • The company has been supplying its Antares rockets since the early 2010's and will continue to do so until at least 2023.

  • This is mostly because this low cost, two stage, middle class rocket is reliable as heck.

  • And in the last two years installed two newly built RD-181 engines to the first stage of its rocket.

  • Its latest payload capacity is now 8,000 kg,

  • helping to get to Low Earth Orbit with ease.

  • And the cargo capsule?

  • Well, Antares is rarely ever seen nowadays without the Cygnus spacecraft.

  • This is because it's another reliable craft that already delivered more than

  • 30,000 kg of critical cargo to the ISS during its first contract missions.

  • And its first launch of this year is NG-15,

  • and the capsule this time around is named after mathematician Katherine Johnson,

  • who played a critical role during the early days of human space flight.

  • The mission will be carrying a load more of exciting experiments.

  • Starting with an oldie, but a goodie.

  • Back in 2018, the Materials International Space Station Experiment - Flight Facility,

  • also known as MISSE-FF,

  • was permanently installed outside of the station.

  • It doesn't do much, just stands still in different directions for periods of time,

  • but is probably one of the most vital ongoing experiments aboard the ISS,

  • and that's because it tests various materials for the harsh environment of space.

  • We're talking literally any kind of material from paints to solar cells.

  • MISSE-FF is actually part of a longer MISSE series,

  • starting back in 2001 and to date, it's tested more than 4,000 kinds of materials.

  • Some of which have helped push our understanding of our solar panels.

  • And now they're sending up phosphor powders and composites that are used for rapid temperature measurement from 0 degrees celsius to 1,200 degrees celsius.

  • Results from this experiment can inform scientists on if phosphor composites can be used in petroleum, healthcare, and aerospace industries.

  • Ultimately, though researchers want more than materials to last in space,

  • we want humans up there too.

  • But muscle atrophy is one of the leading challenges of long-term space duration.

  • So to understand how our muscles degrade in space,

  • we're sending up some worms with our astronauts in a special device known as the NemaFlex.

  • [Dr. Siva Vanapallo] "So in terms of the animal, it's it's really small."

  • "And if you want to measure how strong it is,"

  • "you need to really figure out a way to measure all the forces, which this worm is exerting."

  • "So our lab and students have built this device,"

  • "which essentially has an array of soft colors,"

  • "and the worm as it cross to these array of this of these pillars,"

  • "we can record pictures of how much of the deflection,"

  • "which is happening, sends the result."

  • It's important to note that this isn't just any old worm either.

  • They're nematodes known as C. Elegans

  • and they are a cost effective model organism

  • to test on because they're not only flight proven,

  • but they're the first animal to have their entire genome sequenced.

  • Meaning researchers can see changes in their system pretty easily.

  • One of which is the expression of key muscle genes being reduced while the worms are in spaceflight.

  • With NemaFlex, researchers can now see if that decreased expression is related to the strength

  • the worms push out while they're going through the device.

  • And what's more? They can reproduce quickly and scientists will be able to see if this gene passed on to other generations.

  • [Dr. Siva Vanapallo] "So as a result, if we do observe that our device is able to record these changes in strength,"

  • "then it opens up tremendous opportunities in conducting experiments on different drugs"

  • "and figuring out how to maintain and improve the health of astronauts."

  • - And scientists are not only worried about how our bodies would fare in space,

  • but also how long food would last.

  • And a team in collaboration between Michael David Winery and Common Sense Solutions

  • are talking about grape juice... that will sort of be made into wine.

  • [Jeff Farthing] "We're not really looking at it as making wine."

  • "In essence, we will be making wine out there"

  • "and we're going to end up with an alcoholic beverage on our hands."

  • "It's not going to be anything that's going to be pleasant,"

  • "but it's going to be a better piece of the puzzle to do it this way,"

  • "to present to other scientists who are going to be looking at how food would be managed in outer space."

  • - Although it seems like grape juice isn't the top of everyone's nutrition list, it's a good case study for more crops.

  • The ISS team will be monitoring the fermentation process of the juice

  • to understand how microbiota will act in microgravity.

  • Microbes can determine lots of variables when it comes to fruit like their size, shape, flavor, and even yield.

  • [Jeff Farthing] - "Microbiota would just be really any microbe that's out there,"

  • "meaning bacteria or yeast."

  • "Those are the two main players in what is going to break down food."

  • "It's already been studied many, many times."

  • "We know what's happening on earth."

  • "It's what's going to happen up in space, that's what's going to be interesting."

  • - So, how do they plan to do it?

  • [Jeff Farthing] - "So we're going to make little micro fermentations."

  • "This is what we're doing it in. This is an IV bag"

  • "that's already approved for NASA."

  • "We're going to put about 200 milliliters in here, very small,"

  • "and then we're going to let the fermentation happen naturally."

  • - And throughout 15 days, several samples will be taken, and placed in a freezer

  • until the samples are ready to return to Earth for analysis.

  • Now, this is just a taste of the countless experiments astronauts are up to in the floating lab we call the ISS.

  • And this latest launch is expected to head up there in mid to late February 2021.

  • And it's always exciting, no matter how big or small.

  • Each experiment gets us closer to better understanding ourselves, our world, and the space we may one day live in.

  • Space isn't just for astronauts.

  • If you've ever wanted to send an experiment to the ISS now may be your chance.

  • The Center for the Advancement of Science in Space, or CASIS,

  • has officially announced they're looking for concept submissions by February 25, 2021,

  • and these can be anything like translational medicine

  • and technology demonstrations.

  • Don't miss out and don't forget to subscribe to Seeker for all your space news.

  • Thank you so much for watching.

Yup, it's that time again,

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