

Disclaimer: I am not a professional or actual expert on the subject, my knowledge consists of research when I’m bored. And also this is also theoretical science, meaning there is much evidence to support it, but it’s definitely proved.
Ok moving on.
In any movie involving space travel, you have probably heard the term, Hyperspace, or light speed travel. Well Space Travel isn’t that easy. The Planet, Kepler-452b would take around 28 Million years to get to at the speed of light. Space Travel is dangerous too, astronauts risk their lives every day just by being there. So if Space Travel takes way too long and that’s enough time for bad things to happen, how could we ever travel? I have thought of two methods.
Wormholes
Wormholes are not confirmed to exist, so therefor this is not a viable option with our current understanding. But If they do exist, we could easily use them to travel and explore other planets.
Cryosleep
Also not real with current technology, but if we did figure it out then we could just wait out the long travel. Of course we’d need some type of protection.
If you have any ideas I’d love to hear them.

Well there is an actual way to hibernate. Doctors sometimes take out a patient's blood and put in chilled salt water (saline) to chill their bodyand put them to sleep to drastically decrease the risk of brain damage. If they create a program that will put their blood back and take the saline out in, let's say, 40 years, it might work.
Disclaimer: I am not an expert!

The protection could be people who are woken up periodically and let's say, stay awake for a year, then the next people are woken up and the person who was awake goes back into hibernation.

How do we prevent aging though?

Well if the heart is not beating how can people age?

keeping the cells alive, you’d need to keep them from diving, or find a way to keep them from breaking when they die, so you could jump start them

also I didn’t address the fact that Traveling faster than the speed of light is impossible. This is the fact because beyond it, Space time doesn’t exist

sooo...everyone becomes tardigrades

Tardigrades aren’t immortal, they still age. they just have high resistance

Or you could keep them on bypass. The blood is flowing but a machine is flowing it for them.

Yes but the cells would need to stay alive and stop dividing, that’s what causes aging

or we could kill them, then jumpstart them. The only problem is cells break apart when they die

Killing them and jump starting them would be a bit weird because it probably won't work after they have been dead for 10+ years.

why not, the atoms are still there, ready to be a chemical reaction. But the cells breaking is the problem

What about Rigor Mortis?

isn’t permanent, and that doesn’t account for cell damage

Rigor Mortis Tends to last only four days

you dare defy the tardigrades p e a s a n t
ok im kidding but uhhh...i dunno science...i like science, and i want to know more about it, but uuh yeah not yet im not quite there

Science is weird, nature is weird, the universe is weird, but one thing trumps all the universe in weirdness
p e o p l e

y e s
wait, i've been reminded of something...Immortal jellyfish anyone? are they actually immortal (as in, 'resetting' their age) or is that just a catchy name

that’s a thing, but technically they just get young then old then young and again and again

so...basically immortal
they can still die, just i don't think of age. maybe though.
also turns out there are a few other things that can do that
https://en.wikipedia.org/wiki/Biological_immortality
heres a thing on it
maybe we could do something with this?

Hmmm, maybe I’ll read wikipedia and the sources, because wikipedia isn’t completely reliable

yeah i get that xd
i think i once met someone who was a regular editor on wikipedia that was fun
i usually use it for personal research (ie fun) so for me if its not completely right i dont really mind
but here we're doing SCIENCE

Science bros You’ll see why i put this vid here
its not a rickroll

You messed up his name, and now I can’t hear it the right way now
lol

All of my knowledge comes from movies tho. But I like everyone's ideas.
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