Astronauts are the brave explorers of space, venturing beyond our planet to uncover the mysteries of the universe. One of the most exciting parts of their missions is the spacewalk, where they step outside their spacecraft or the International Space Station (ISS) and float in the vastness of space.
During a spacewalk, astronauts wear special suits that keep them safe from the extreme conditions in Space. This allows them to fix equipment, install new tools, or conduct experiments while seeing Earth from above.
These experiences not only challenge their skills but also give them a unique view of our planet, reminding us of the amazing things beyond our world. Here are 10 interesting facts about astronauts that highlight their unique experiences and challenges.
1. Astronauts Age Slower in Space
Due to the effects of time dilation as described by Einstein’s theory of relativity, astronauts age slightly slower than people on Earth. For instance, a six-month stay on the International Space Station (ISS) results in astronauts being about 0.005 seconds younger than their Earth-bound counterparts.
2. Training in Russian
All American astronauts must learn Russian. This requirement stems from the collaboration between NASA and the Russian space agency, Roscosmos, particularly for missions involving the ISS, where Russian spacecraft play a critical role in transportation and logistics.
3. Microgravity Effects on Height
In microgravity, astronauts can grow up to 3% taller because the discs in their spines expand without the pressure of Earth’s gravity. However, this height increase is temporary; they return to their normal height upon re-entering Earth’s atmosphere.
4. Daily Exercise is Mandatory
To combat muscle and bone loss due to the lack of gravity, astronauts are required to exercise for at least two hours every day while in space. They use specialized equipment like treadmills and resistance machines to maintain their physical health.
5. Unique Toileting Solutions
Astronauts use a specially designed toilet system that includes a vacuum mechanism to manage waste in microgravity. Additionally, they wear “Maximum Absorbency Garments” (essentially diapers) during launches and landings to handle any unexpected delays.
6. Seeing Multiple Sunrises
Astronauts aboard the ISS experience about 16 sunrises and sunsets each day due to its rapid orbit around Earth, completing a full revolution approximately every 90 minutes. This constant cycle can disrupt their sleep patterns.
7. Space Haircuts Are Complicated
Getting a haircut in space is not as simple as it is on Earth. Astronauts use clippers attached to a vacuum to prevent hair clippings from floating away and clogging air filters.
8. Challenges with Fingernails
The bulky gloves worn by astronauts can lead to issues with their fingernails, including blisters or even nails falling off due to pressure and circulation problems. Some astronauts have even been known to remove their nails before missions as a precaution.
9. The Size of the ISS
The International Space Station is one of the largest human-made structures in space, measuring about the size of a football field and weighing approximately 460 tons. It serves as a laboratory for scientific research across various disciplines.
10. Astronauts Can’t Just Eat Anything
Food in space must be specially prepared and packaged to prevent crumbs or liquids from floating away, which could damage equipment or pose choking hazards. Astronauts often eat rehydratable meals or snacks that are easy to consume in microgravity.
These facts not only showcase the incredible experiences of astronauts but also highlight the extensive preparation and adaptation required for life beyond our planet. The next time you look up at the stars, remember these remarkable individuals who navigate the final frontier!
Also Read: 10 interesting facts about Rockets.
