Will astronauts "faint in space"?
Will astronauts "faint in space"?
They do, but they are reluctant to admit it.

(this is a translation, the original text is from Curious Kids, a question and answer column on the conversation. Original author: Kevin Orrman-Rossiter. )

will astronauts faint in space when they travel from Earth to the International Space Station?

-- students in Class 3e of Finnegrove State School

this is a good question. If the students in Class 3e have a chance to fly into space, put on a patch to prevent nausea and refuel it. Disgusting discomfort in space does exist, but if it happens to you, it should be short-lived, and you will always remember the experience of space travel.

Yes, astronauts will be "dizzy" when they go to the International Space Station. The astronauts are now carried by narrow Soyuz spaceships, which are less likely to suffer from discomfort than space shuttles in the past. It can move in the space shuttle, which increases the possibility of "halting space". In the first few days of arriving at the space station, Halo affects up to half of the astronauts.

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(to be specific, it's about this narrow. The picture is from NASA, where astronauts are ready to return to Earth from the space station. After the shutdown of the space shuttle, astronauts to and from the International Space Station mainly rely on Soyuz (

astronauts vomit in their helmets, which may sound funny or embarrassing at first. However, astronaut Mike Mullane mentions in his biography that this can be fatal-especially when astronauts are on a spacewalk. Vomit will be pasted inside the helmet, blocking the astronauts' view. And because it cannot be removed, vomit may be inhaled or block the oxygen circulatory system.

what causes "halo in space"?

as you may know, gravity is relatively low inside the International Space Station. Gravity is the force that pulls us to the ground. The low gravity in space allows astronauts to float around, which seems interesting, but it also contributes to discomfort.

"space sickness" is a nausea and disorientation felt by many astronauts. NASA refers to it as "space adaptation syndrome" (space adaptation syndrome). The word is more apt to describe the problem, because it is a problem for astronauts to adapt to weightlessness in space. People do not fully understand the cause of "halo in space".

recent experiments have shown that "halo" is related to our inner ear. The two regions of the inner ear respond to rotation and sudden changes in direction. If you shake or move your head quickly, you will feel dizzy and some people will even feel sick. However, this usually passes quickly.

this normal response can be annoying in low gravity-your inner ear thinks you are constantly moving. It will take some time to adapt to the new environment of weightlessness. If you move the head while the body is still adapting, the situation will get worse. This is why in the past astronauts were more likely to "faint" when moving through space shuttles with larger space: in small spaces, astronauts moved their heads less.

in early space missions, "halo space" was not mentioned. Like today's Soyuz, the original Mercury and Gemini spacecraft were narrow. It was not until the Apollo program and subsequent missions that discomfort in space began to become a concern for NASA.

in 1983, astronaut and doctor Norm Thagard conducted the first detailed study on the space shuttle (STS-7). His research and subsequent studies are hampered by the astronauts themselves: no one wants to admit that they are "out of space". Astronauts worry that the mission command center will disqualify them from spacewalking, or worse, they may not be included in the list of the next space mission.

original link: https://theconversation.com/curious-kids-do-astronauts-get-space-sick-when-they-travel-from-earth-to-the-international-space-station-82888

inscription Source: NASA