Are you younger in space?

Astronauts age a bit slower than those of us on Earth due to something called "time dilation" described by Einstein's theory of relativity.
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Are you older or younger in space?

The difference isn't noticeable though — after spending six months on the ISS, astronauts have aged about 0.005 seconds less than the rest of us.
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Do you age backwards in space?

Contrary to general perception that one ages faster in near zero gravity, a new NASA study finds space travel may have reversed aging at least in one astronaut.
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How long is 1 hour in space?

The time dilation on that planet—one hour equals 7 Earth years—seems extreme. To get that, you'd apparently need to be at the event horizon of a black hole. Yes.
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How long is 1 second in space?

The light-second is a unit of length useful in astronomy, telecommunications and relativistic physics. It is defined as the distance that light travels in free space in one second, and is equal to exactly 299,792,458 metres (983,571,056 ft).
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NASA's Twin Space Experiment Explained | WIRED



Do you live longer in space?

Both athletes & astronauts had a lower risk of premature death than the general population: Study. Although space travel exposes astronauts to forms of radiation that are uncommon on Earth, and that are linked to cancers and heart problems, a US study suggests this doesn't significantly shorten their lives.
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Are astronauts younger than us?

Astronauts age a bit slower than those of us on Earth due to something called "time dilation" described by Einstein's theory of relativity.
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What happens if you stay in space for 5 years?

Astronauts who have stayed in space for long periods have problems with their circulation and eyesight. That's in addition to losses in bone and muscle tissue. Kelly has collected fluid samples and undergone rigorous medical testing to document these changes over the course of his trip.
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Is time slower in space?

A clock in outer space moves more quickly than a clock on Earth. Heavy things like planets create a gravitational field that slows down time nearby. This means that a clock on a spaceship far away from any planet would move faster than a clock near Earth.
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Do you age slower on Mars?

Short answer: Most likely not, but we don't really know. There are theories about how gravity affects the physiology of our body, and we know what aspects get affected by lack of gravity. The overwhelming majority of effects noted due to low gravity are negative.
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How much slower do you age in space?

So in your question, an astronaut returning from a space journey at “relativistic speeds” (where the effects of relativity start to manifest—generally at least one-tenth the speed of light) would, upon return, be younger than same-age friends and family who stayed on Earth.
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Do astronauts get paid for life?

According to NASA, civilian astronauts are awarded a pay grade of anywhere from GS-11 to GS-14, so the income range is relatively wide. Starting salaries begin at just over $66,000 a year. Seasoned astronauts, on the other hand, can earn upward of $144,566 a year.
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Why do astronauts age slower?

The faster you move and accelerate, the more time slows down, and because Scott Kelly has been zooming up to and down from space, and orbiting the planet at around 28,200 km/h (17,500 mph), his brother Mark has lived through five extra milliseconds.
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What does space smell like?

A succession of astronauts have described the smell as '… a rather pleasant metallic sensation ... [like] ... sweet-smelling welding fumes', 'burning metal', 'a distinct odour of ozone, an acrid smell', 'walnuts and brake pads', 'gunpowder' and even 'burnt almond cookie'.
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How much do astronauts get paid?

The pay grades for civilian astronaut candidates are set by federal government pay scales and vary based on academic achievements and experience. According to NASA , civilian astronaut salaries range from $104,898 to $161,141 per year. Here are a few of the benefits offered to civilian astronauts: Health care.
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How cold is it in space?

The Cosmic Background Explorer (COBE) satellite has refined temperature measurements taken way back in 1964. According to data from the Cosmic Background Explorer (COBE) satellite, the temperature of space is 2.725K (2.725 degrees above absolute zero).
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How do astronauts sleep for years?

The astronauts sleep in small sleeping compartments by using sleeping bags. They strap their bodies loosely so that their bodies will not float around. In the zero-gravity world, there are no "ups" or "downs".
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Are astronauts Rich?

Astronauts are paid according to the federal government's General Schedule pay scale, and they can fall on the GS-11 through GS-14 pay grades. The pay grade is based on an astronaut's academic achievements and experience. The starting salary for GS-11 employees is $53,805.
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How much money was Neil Armstrong paid to go to the moon?

Neil Armstrong's Salary

At the time of the Apollo 11 flight in 1969, Neil Armstrong was paid a salary of $27,401 and was the highest paid of the flying astronauts, according to the Boston Herald. That translates to $190,684 in 2019 dollars.
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Do you age slower in a black hole?

In short, a person near a black hole will age slower compared to someone far away from the black hole. This is because the passing of time is slowed down due to the extremely strong gravitational field near the black hole and thus, any physical aging processes will also happen slower.
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Why do astronauts age faster in space?

Poor DNA Replication is a Health Risk

"The combined effect of greater damage and decreased replication accuracy could lead to premature aging in astronauts."
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Why don't you age in space?

In space, people usually experience environmental stressors like microgravity, cosmic radiation, and social isolation, which can all impact aging. Studies on long-term space travel often measure aging biomarkers such as telomere length and heartbeat rates, not epigenetic aging.
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How old would I be on Mars if I was 12?

A year on Mars is longer than a year on Earth—almost twice as long at 687 days. This is roughly 1.88 times the length of a year on Earth, so to calculate your age on Mars we simply have to divide your Earth age by 1.88.
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