[custom_adv] Visual impairment intracranial pressure syndrome (VIIP) is a visual impairment that most astronauts report after staying in space for an extended period of time. NASA has conducted research on the topic, but thus far no particular cause has been established. The space mission to Mars may be under question until scientists figure out how to help the astronauts with this syndrome. [custom_adv] The lack of gravity also causes a peculiar change in the way the fluids inside the human body flow. Instead of going back to the lower limbs as on Earth, the blood, for instance, travels all the way to the head. That is why some astronauts look more "round" when they are back. [custom_adv] Astronauts must train at all times while in space. A condition called atrophy may weaken the muscles and bones after a long trip to space. Therefore, all people who travel in space are encouraged to exercise daily. [custom_adv] 22 astronauts reported losing their fingernails after trips to the International Space Station. A study said that a peculiar design of their gloves put pressure on the nails, causing them to fall off. This problem will likely be solved by a new design of gloves for spacewalks. [custom_adv] Remember watching all those sci-fi movies about people going crazy onboard spaceships? Well, it might become a reality with a mission to Mars. To avoid such a situation, NASA and Russia's Space Agency "Roscosmos" have conducted many studies and will continue to do so to see what happens to people in close confinement. [custom_adv] If you wonder whether it is possible to survive in open space if something goes awry with your spacesuit, here is what we know so far:You would lose consciousness in 15 seconds.This would be followed by asphyxiation or decompression.10 seconds in open space makes you bubble up with blood.Your lungs would collapse in 30 seconds.To sum up, you would be dead in less than a minute. [custom_adv] The heart also experiences a lot of changes in space. For example, it pumps less blood and changes its shape to be more spherical. Studies on astronauts may help not only to avoid such cardio problems in the future in space but also for people on Earth. [custom_adv] Hypothetically, if a human fell into a black hole, he or she would experience extreme "stretching." Their sense of time would also change. A person would be able to see both the future and the past at the same time. However, it is most likely that instant death would occur as their body and brain would dissolve into ions. [custom_adv] An astronaut's job is considered one of the most dangerous and difficult in the world. Thus, having a sense of humor is always helpful to survive both physical and emotional stress.In this photo, an astronaut holds up a "For Sale" sign for two satellites not functioning properly. [custom_adv] If you thought of growing just a few inches taller, then going to space may help you temporarily. The absence of gravitational forces makes the human spine stretch. A series of ultrasound tests confirmed why astronauts come back a bit taller.
