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Time can appear to move faster or slower to us relative to others in a different part of space-time. That means astronauts on the International Space Station age slower than people on Earth.
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 ...
It is still unknown whether bone recovers completely. Unlike people with osteoporosis, astronauts eventually regain their bone density. [citation needed] After a 3–4 month trip into space, it takes about 2–3 years to regain lost bone density. [citation needed] New techniques are being developed to help astronauts recover faster. Research on ...
If the samples age more quickly in space, scientists will learn more about the process far faster than they would if studying samples on Earth. It is hoped that will lead to new treatments for age ...
Space adaptation syndrome or space sickness is a kind of motion sickness that can occur when one's surroundings visually appear to be in motion, but without a corresponding sense of bodily motion. This incongruous condition can occur during space travel when changes in g-forces compromise one's spatial orientation . [ 5 ]
British astronaut Tim Peake became the first man to complete a marathon in space on Sunday, running the 26.2 mile distance while strapped to a treadmill.
Because its 586-mile-per-hour (943 km/h) air speed was faster than that of a .45 caliber bullet, Glenn called the flight Project Bullet. [65] He flew an F8U Crusader 2,445 miles (3,935 km) from Los Alamitos, California , to Floyd Bennett Field in New York City in 3 hours, 23 minutes and 8.3 seconds, [ 62 ] averaging supersonic speed despite ...
During the Apollo 17 mission in 1972 - the last time people walked on the moon - U.S. astronauts Harrison Schmitt and Eugene Cernan collected about 243 pounds (110.4 kg) of soil and rock samples ...