Kelly Scientific UK
This afternoon, NASA astronaut Scott Kelly and Russian cosmonaut Mikhail Kornienko take off for a yearlong stay on the International Space Station. The record-breaking jaunt aims to help researchers understand how humans react and adapt to protracted stints in space. After all, we may soon find ourselves capable of traveling farther away from our home planet-and things can get weird while living long-term in zero gravity.
Fortunately, NASA’s study has the perfect control here on terra firma: Scott’s identical twin brother, retired astronaut Mark Kelly. In this unprecedented project, 10 investigations will collect and analyze genetic, molecular, and physiological data from both men. Scott and Mark will undergo the same tests at roughly the same time, providing researchers new clues about how spaceflight affects the body.
Among the many tests is one that’s been troubling scientists for some time: Why do more than half of U.S. astronauts experience changes in eyesight and intracranial pressure during long-term spaceflight? And could the results provide answers for how to treat eye disease on Earth?
In 2011, a survey of 300 astronauts found that nearly 30 percent on short-term missions and 60 percent on long-term missions suffered some loss of vision. Seven astronauts who were studied in-depth before and after a six-month run in space experienced a spectrum of changes: from fluffy off-white patches on the retina called cotton wool spots, to swelling in the “blind spot” of the eye and optic nerve, to a “flattening” of the eyeball shape.
Why do more than half of U.S. astronauts experience changes in eyesight during long-term spaceflight?
Researchers suspect that microgravity conditions cause body fluids such as blood to shift from the lower body to the head. This can trigger puffy faces and stuffy sinuses. “It feels like you have a really bad head cold, ” says NASA scientist Jennifer Fogarty in a video about vision changes in space.
Testing this theory isn’t simple. Intracranial pressure is normally measured using a spinal tap—an invasive procedure in the best of conditions. Instead, scientists are using noninvasive methods such as MRI, ultrasound, and a light-based medical imaging technique called optical coherence tomography.
“Our goal is to understand and measure the fluid shift that occurs in space, ” says UC-San Diego postdoctoral fellow Brandon Macias, a co-investigator on the project. “We hope to create a longitudinal map of changes: before, during, and after spaceflight.” What they find could have the potential to help treat common civilian eye issues, such as glaucoma.futurology related words futurology predictions airport for scottsdale az positive affirmations success future home of the living god futurology vinyl humor quotes in born a crime airport of destination meaning which of the following groups have had notable political success by litigating in federal courts? manchester airport past departures cityview hotel in kowloon airport parking san diego futurology of education future near earth asteroids picture of success airport ziplock bag green gables future progressive future city pcos pregnancy success rate the smell of success futurology examples future questions futurology books 2020 green bay crime reports future quiz future of work during covid up airport map future behind bars future buildings flights to nyc dallas to lax flights airport food through security futurology trends flights from orlando to miami salons at cityview flights to houston texas futurology kiosk future by red velvet futurology origin future girlfriend jumor vk dark humor among us names green apple best success books iui success rate future days lyrics cityview apartments greensboro airport underwater futurology in business future in 8 mile future as jesus meme future after covid airport to circular quay future vs past airport jackson ms flights to utah airport under seat bag inspirational success quotes outdoor future future off road suvs future faking futurology related words humor games future proof against futurology topics future kids ages futurology kiosk future definition futurology language future job quiz futurology tracklist future scholar future from where college measured success future until humor her future gif sauteed green beans flights from houston to denver humor questionnaire future kids ages future after pandemic future x men war cityview apartments san diego futurology reddit future jesus meme what is the landing at the top of the stairs called the future within our grasp xenoblade cityview fayetteville cheapest flights right now distant future opposite of future utility run star hike lax to miami flights executive success program future of outside broadcasting future retail cityview church minneapolis future concert humor during lockdown humor based off my pain future islands future endeavors aruba flights future gohan dark green hair humor ya books future quotes rapper future on youtube green bodysuit airport to fly into tulum future revolution getting off lexapro success stories future in french future pro bowl locations future break even off humor meaning fridays for future contra flights to orlando from phl future of outside broadcasting flights to san juan future past meaning cityview trolley boston ma denver airport between terminals courtyard marriott cityview fort worth future games preseed success rate airport beside blackpool green eyeshadow frontier airlines flights futurology of education in hindi motsatsen till humor futurology tracklist cityview target fort worth airport under map glitch future instagram future near sentence airport of the future future value studentuniverse flights futurology in business future out the mattress follicle size for iui success flights to vancouver green bananas future atlanta invitro fertilization success rate future energy without humor quotes future from st louis cityview bible church round rock flights to jamaica what is futurology future house vantage cityview airport extreme base station future baby boy names 2021 cityview builders rock hill sc green bay packers schedule airport with most runways next future of epl what is the landing at the top of the stairs called towards future-proof inland waterway transport flights to san juan puerto rico soylent green future endeavors future ford