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re: If the universe is 93 billion light years across, how is it only 14.5 billion years old?
Posted on 11/9/20 at 3:24 pm to theunknownknight
Posted on 11/9/20 at 3:24 pm to theunknownknight
quote:
the universe is 93 billion light years across, how is it only 14.5 billion years old?
There’s a better chance of me understanding this than me understanding how Kamala Harris could become President
0
Posted on 11/9/20 at 3:24 pm to theunknownknight
quote:
If the speed of light can’t be exceeded?*
*many physicists estimate the size of the universe to be WAY larger than 14.5 billion light years across (46.5 billion light years in all directions)
So did matter travel WAY faster than the speed of light right after the Big Bang? And if it did, as would be necessary - would that matter have traveled back in time?
peep the cosmic inflation n00b
Posted on 11/9/20 at 3:24 pm to theunknownknight
quote:
14.5 billion years old
False
Posted on 11/9/20 at 3:24 pm to Fun Bunch
The space between Earth and the Sun is not expanding.
LINK
LINK
quote:
But even though the fabric of space is expanding throughout the Universe — everywhere and in all directions — we aren't. Our atoms remain the same size. So do the planets, moons, and stars, as well as the distances separating them. Even the galaxies in our Local Group aren't expanding away from one another; they're gravitating towards one another instead. Here's the key to understanding what is (and isn't) expanding in our expanding Universe.
Posted on 11/9/20 at 3:27 pm to No Colors
Never a better thread for this meme
Posted on 11/9/20 at 3:30 pm to GumplandTiger
The ocean depths are my other favorite topic, but it's silly to reason why we have put so much of our time and resources into space and not our ocean depths. For one thing, space is only concerning between a vacuum and 1 atm for us. So our ocean depths might as well be as alien to us as any gas giant, star, or black hole just because of the pressures involved.
I think there's nothing wrong with enjoying both areas equally
I think there's nothing wrong with enjoying both areas equally
Posted on 11/9/20 at 3:36 pm to GetEmTigers08
And if you e ever seen some of the creatures they pull out of the depths of the ocean, you realize we have aliens on earth!
Posted on 11/9/20 at 3:38 pm to BayouBlitz
quote:
The space between Earth and the Sun is not expanding.
It is...or at least they are growing farther apart.
quote:
In the last five years or so, astronomers have noticed a puzzling change in the astronomical unit, the distance of the Earth’s from the sun. Various measurements indicate that this distance (or at least the length of the Earth’s semimajor axis) is increasing at the rate of 15 cm per year (plus or minus 4 cm).
LINK /
Posted on 11/9/20 at 3:42 pm to GumplandTiger
quote:
We are never gonna make it into deep space in our lifetime.
This got me thinking far away is Voyager 1. Its well outside our solar system in "interstellar space." Since 1977 its been traveling at 38,000 mph and its only, in light year terms, only 22 minutes away.
This post was edited on 11/9/20 at 3:44 pm
Posted on 11/9/20 at 3:49 pm to supadave3
You understand just fine
Science makes shite up when it runs out of answers
Ask them what was there before the Big Bang ?
Space? Time ? Matter ? Physical Laws ?
They go blank
Science makes shite up when it runs out of answers
Ask them what was there before the Big Bang ?
Space? Time ? Matter ? Physical Laws ?
They go blank
Posted on 11/9/20 at 3:54 pm to ccomeaux
quote:
Science makes shite up when it runs out of answers
quote:
They go blank
lol, idiot
Posted on 11/9/20 at 4:03 pm to ccomeaux
quote:
Science makes shite up when it runs out of answers
Ask them what was there before the Big Bang ?
Space? Time ? Matter ? Physical Laws ?
They go blank
You are exceptionally dumb.
Posted on 11/9/20 at 4:15 pm to theunknownknight
Uhhhhh, I don't know what kind of church you go to, but my pastor said the Earth is 6,000 years old.
Posted on 11/9/20 at 4:22 pm to theunknownknight
quote:
If the universe is 93 billion light years across, how is it only 14.5 billion years old?
It started 64 billion "light years across"?
Posted on 11/9/20 at 4:24 pm to theunknownknight
quote:
So did matter travel WAY faster than the speed of light right after the Big Bang? And if it did, as would be necessary - would that matter have traveled back in time?
You need to spend some time learning about relativity. The galaxies aren't moving faster than light it is actually the fact that every part of space is expanding that gives the perception of breaking the speed of light.
Posted on 11/9/20 at 4:25 pm to theunknownknight
quote:it can, just have to science it up.
If the speed of light can’t be exceeded?*
A stone can be a billion years old..doesnt mean it has to weigh a billion pounds
Posted on 11/9/20 at 4:34 pm to ccomeaux
quote:
You understand just fine
Science makes shite up when it runs out of answers
Ask them what was there before the Big Bang ?
Space? Time ? Matter ? Physical Laws ?
They go blank
No....they answer with the only logical answer which is we simply don’t know. There’s nothing wrong with that.
Posted on 11/9/20 at 4:35 pm to theunknownknight
Matter cannot travel faster than light, but space itself can expand faster and isn't bound to this infinite energy problem. Most people think of the inflation of the universe as expanding outward from a single point. But instead you really have all space, expanding, everywhere. You can pick any arbitrary point in the universe and you can look in any direction of your choice, you'll see stuff is expanding/moving away from you. And it's speeding up.
This concept of expansion coupled with the fact that it's accelerating means that a future being in the milky way may not be able to see ANY galaxies in the universe outside of our little local group. You'll be able to point the telescope into the skies but everything besides our own few galaxies and the stars within, will be just a void. The physical location of a distant galaxy that's sending light our way will be expanding away from us quicker than the speed of light, meaning even in an infinite number of years that light and information will never reach us. For distant future beings, the universe will look really small and empty. That's why the term observable universe exists
This concept of expansion coupled with the fact that it's accelerating means that a future being in the milky way may not be able to see ANY galaxies in the universe outside of our little local group. You'll be able to point the telescope into the skies but everything besides our own few galaxies and the stars within, will be just a void. The physical location of a distant galaxy that's sending light our way will be expanding away from us quicker than the speed of light, meaning even in an infinite number of years that light and information will never reach us. For distant future beings, the universe will look really small and empty. That's why the term observable universe exists
Posted on 11/9/20 at 4:36 pm to GetEmTigers08
quote:
The ocean depths are my other favorite topic, but it's silly to reason why we have put so much of our time and resources into space and not our ocean depths.
Agreed the oceans aren’t studied nearly to the extent they should be.
Posted on 11/9/20 at 4:45 pm to theunknownknight
quote:There is no actual fabric.
The fabric of space
How is this not matter in some form?
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