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Put another way, the space ship sees the image change from a red-shift (slower aging of the image) to a blue-shift (faster aging of the image) at the midpoint of its trip (at the turnaround, 3 years after departure); the Earth sees the image of the ship change from red-shift to blue shift after 9 years (almost at the end of the period that the ...
Astronauts aboard the ISS, on the other hand, are much farther from Earth's center of gravity than the rest of us — about 260 miles farther. So, in that case, astronauts actually age slower .
Water cohesion plays a bigger role in microgravity than on Earth In space, astronauts lose fluid volume—including up to 22% of their blood volume. [ 81 ] When the astronauts return to Earth, low blood volume can cause orthostatic intolerance or dizziness when standing. [ 82 ]
Most crewmembers felt that the pre-mission timeline should provide adequate time to maintain musculoskeletal strength and stamina. Some astronauts attributed their capabilities on the lunar surface to pre-mission training because in some cases more force was needed on the lunar surface while wearing the EVA suit than was needed in 1G on Earth.
For two years, NASA trains its astronauts, including have them work underwater and learn desert survival skills, to get them ready for space travel. Photos and videos show why only 360 people have ...
The trio revealed some anecdotes about the trials of readjusting to life on Earth after spending more than 230 days in space. The astronauts remained tight-lipped about the nature of the medical ...
White's astronaut interviews confirmed the importance of the difference between intellectual knowledge versus experience, of perceiving the "striking thinness of the atmosphere", of thinking of ourselves interconnected and part of the Earth as an organic system, and that we as different people "are all in this together". [9]
Four people are about to embark on a journey that will take them farther from Earth than anyone has traveled since 1972 when Apollo 17 astronauts landed on the moon.