Astronaut Scott Kelly Experienced Sensory Shock Upon Returning from the Space Station
Poin Utama
- Scott Kelly landed in Kazakhstan after his approximately one-year mission on the ISS in March 2016.
- Upon returning to Earth, the smell of rain and the texture of objects felt extremely intense to him due to his heightened sensitivity.
- NASA's Twins Study examined the effects of long-term spaceflight on gene expression and physical structure.
- Some gene expression changes related to immunity and DNA repair remained permanent after the mission.
Dalam Angka
American astronaut Scott Kelly landed in the Kazakh steppe in March 2016 after spending approximately one year at the International Space Station (ISS). Stating that the hard part was not leaving Earth but returning to it, Kelly struggled greatly with the sensory intensity of Earth as well as the pressure gravity placed on his legs. The smell of rain, the wind, and the texture of ordinary objects were felt with an almost unbearable vividness.
During this mission conducted as part of NASA's Twins Study, Kelly was compared with his twin brother Mark Kelly, who served as a control group in Earth's gravity. Ten research teams examining the biological effects of long-term spaceflight documented changes in gene expression, telomere length, and the gut microbiome. Kelly returned home taller, with altered vision, and extremely sensitive skin; in fact, his body would break out in hives whenever it touched a lounge chair or a bed.
While most biological changes in the trunk returned to normal within the months following the landing on Earth, some permanent effects were observed. Structural differences were detected in Kelly's carotid artery and retina. Additionally, a small fraction of gene expressions related to immune response, DNA repair, and inflammation remained altered long after the mission ended.
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Pertanyaan Umum
- What surprised Scott Kelly the most when he returned from space?
- Kelly was surprised by how extremely vivid and almost unbearable the smell of rain, the wind, and the ordinary textures of Earth felt after leaving the filtered, airless environment.
- What was the purpose of NASA's Twins Study?
- The study was conducted to examine Scott Kelly's biological changes in space by comparing them with his twin brother Mark Kelly, who remained on Earth.
- Were there permanent biological effects of the spaceflight?
- Yes, while many changes in the body returned to normal, permanent structural changes were observed in the carotid artery, the retina, and some gene expressions related to immunity.
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