What are 5 facts about space?
- Space is completely silent. ...
- The hottest planet in our solar system is 450° C. ...
- There may be life on Mars. ...
- Nobody knows how many stars are in space. ...
- Halleys Comet won't orbit past Earth again until 2061. ...
- A full NASA space suit costs $ ...
- Neutron stars can spin 600 times per second.
What is the most interesting fact about space?
In the observable universe there are an estimated 2 trillion (2,000) galaxies. The International Space Station is the largest ever crewed object in space. Spacecraft have visited all the known planets in our solar system.
Why don't we age in space?
That's because space-time isn't flat — it's curved, and it can be warped by matter and energy. ... And for astronauts on the International Space Station, that means they get to age just a tiny bit slower than people on Earth. That's because of time-dilation effects.
Do astronauts age faster in space?
Telomeres and aging Our study proposed that the unique stresses and out-of-this-world exposures the astronauts experience during spaceflight – things like isolation, microgravity, high carbon dioxide levels and galactic cosmic rays – would accelerate telomere shortening and aging.
Would a human explode in space?
Humans don't explode in space. Even though outer space represents a lack of air pressure, which usually counters the internal pressure in our bodies, our tissue is strong enough to handle the imbalance. ... Humans exposed to the vacuum of space don't explode.
How long are they in space for?
about six months
What happens to DNA in space?
'Space genes': NASA confirms space travel changes DNA — even upon return to Earth. The stresses of space travel can alter a person's genetic makeup, NASA says, and the changes can linger even after a return to Earth. Call it the effects of "space genes," or DNA that doesn't return to normal after a sojourn in space.
What happens to the human body after being in space?
Without gravity working on your body, your bones and muscles start to break down. Bone density drops by over 1% per month. On Earth, gravity compresses our spinal cords. But in space, the microgravity environment stretches the spine and astronauts can get a couple inches taller.
What is a year on Mars called?
Martian days are called sols—short for "solar day." A year on Mars lasts 669.
Did Mars used to be like Earth?
In many aspects, Mars is the most Earth-like of all the other planets in the Solar System. It is thought that Mars had a more Earth-like environment early in its geological history, with a thicker atmosphere and abundant water that was lost over the course of hundreds of millions of years through atmospheric escape.
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