01/03/2021
| The NASA’s Twin Study
Look: Here is the picture of the Kelly twins. Mark and Scott Kelly portrayed time's impact in the growth and development of an individual. This study refers to an astronaut Scott Kelly who traveled to space and went through a year at ISS while astronaut Mark Kelly remained on Earth. NASA's "twins study" planned to examine how microgravity can deal with the human body. This investigation uncovers how a human body adjusted to the extraordinary climate of outer space.
Astronaut Scott Kelly is on the left side while astronaut Mark Kelly is on the right. The image indicated that space explorer Scott Kelly grew two inches taller than his twin sibling.Space explorers became taller due to the intervertebral discs.Unlike on Earth, the discs between each vertebra were not as packed as they should be. Due to minimal presence of gravity, the human’s verterbral column becomes longer.
Image Credit: NASA
Reference: Choo, S. & Gussone, F. (2016) NASA's Scott Kelly Grew 2 Inches: The Body After a Year in Space. https://www.nbcnews.com/health/health-news/nasa-s-scott-kelly-grew-2-inches-body-after-year-n530456
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