Why there is no Earth-like planets?
Einstein said it’s not possible to travel through space time faster than the speed of light. However, no such limit was placed on space time itself, for example, expanding faster than light speed (as proposed in current cosmic inflation theory).Am I right in saying Einstein ruled out FTL space travel, so warp drive technology won't happen?
Then there is the possibility of stasis? Could that happen, to allow space travel over decades, possibly hundreds of years?
but by that time, we''ll have 90 inch 64k Supa Dupa OLED, and they'll be cheaper on Mars, because of tax breaks, so out door oxygen will just be a minor issue.Can I ask, what is the fascination with living on Mars? It has no breathable atmosphere, no beautiful landscapes as we see on Earth. You'd be trapped living indoors for the rest of your life. Seems like a pretty dismal existence.
Well, if we mentioned science fiction then I have a question: did someone read or watch The Expanse? What do you think about James Corey's vision of Solar system colonization?
Kim Stanley Robinson's Mars Trilogy explains how it might happen. Clearly that's science-fiction for now though. But so was walking on the Moon once upon a time.
Mandark, actually, this is an allegory that demonstrates an impartial reflection of the world, not as it might be in two hundred years, but as it is today. So the actress Shohre Aghdashlu speaks about the series in a similar vein: “When we started shooting, I kept asking:“ What kind of science fiction? Why fiction? There is no fiction here. Everything I see on the [script] page I see on the news as well. ”
This is not true, at the speed of light you can reach anywhere in the universe instantly.Why there is no Earth-like planets? NASA published data on a new exoplanet TOI 700 d. This object is approximately equal to the Earth in size, and is located at such a distance to its star, which could provide liquid water on its surface. The bitter truth is that with the technology we have now, we will never reach any of the exoplanets, let alone send humans there. This was recently confirmed by the 2019 Nobel Prize winner in physics Michael Mayor, the first scientist to discover a planet outside the solar system in 1995. According to him, the migration of humanity to another exoplanet is absolutely crazy, because people will need to fly at least 11 years at the speed of light to get to the nearest exoplanet that circles around another star and has temperature characteristics acceptable to humans.
This is not true, at the speed of light you can reach anywhere in the universe instantly.
No the speed of light is infinite, a light beam exists everywhere along its path at the same time.Takes light 8 1/2 minutes to get to earth from the sun, ish as orbits vary.
You maybe thinking of wormholes, Einstein Rosen bridges I think is the proper term.
So why does it take light 8 1/2 minutes to get from the sun to earth and what we see in the night sky, such as supernovae, happened a very long time ago?No the speed of light is infinite, a light beam exists everywhere along its path at the same time.
This is relativity theory 101.
Because its relative to the observer.So why does it take light 8 1/2 minutes to get from the sun to earth and what we see in the night sky, such as supernovae, happened a very long time ago?
Okay so in terms of travel to another star it is going to take a very long time, both relative to the ship time and back here on earth, as there will be a lot of 1G acceleration and deceleration as us delicate flowers can't manage much else for long periods of time.Because its relative to the observer.
To get to basics.....there is no such such thing as gravity, when mass is placed in space it distorts time and when time gets distorted, you move relative to it.
That's acceleration, in essence, gravity is just the acceleration you feel get drawn into the earths gravity well.
So, if you are on a space craft that is accelerating at 9.8m/s or 1G, then what you feel is no different to standing on the ground. You can get up and walk around just like you can on earth.
Now, if you keep that acceleration constant, you can live on that spaceship under iG gravity.
With that constant acceleration, the faster you go the slower time goes for everyone not on the spaceship but its constant on the spaceship. There is no limit to the velocity that spaceship can reach and you will cross the milky way galaxy in around 12 years ship time at that acceleration rate.
That's basically, it.Okay so in terms of travel to another star it is going to take a very long time, both relative to the ship time and back here on earth, as there will be a lot of 1G acceleration and deceleration as us delicate flowers can't manage much else for long periods of time.