Doer
Well-Known Member
What does Earth really look like to the Universe? Odd. No wonder orbits can be so tricky. This is the Gravity Density Earth.
http://www.blogs.discovermagazine.com
On that subject, now that we know about gravity lensing, how far out there is "stuff" anyway? If we go by light speed only, and we do, we calculate the straight line distance, only.
Now we know there is no straight line distance, what so ever, for light on the scale of the Universe. All light is bent significantly many times and in many directions before it finally gets here.
It reminds me of that fact about Solar Photons. They are born deep inside the sun but the route to get out is so tortured with the density interactions, that what should have taken only a few seconds, takes 10 million years. The point is, if we only had the light path to measure the Sun, it would seem to be 20 million light years across. See what I mean? The Sun is only about 864,938 miles across. The Solar Photons are slowed by more than 95%.
So, it could turn out that the oldest light has been traveling for 17 billion years, across a 17 billion light year path, and is around 17 billion years old as measured by the non-gravity affected Big Bang microwaves. But we have no idea how tortured these paths were. So we have no idea how far it is, straight line, to the far galaxy edge. It could easily be only 1/10 as far, like 1.7 billion light years.
Here are some tortured light paths discovered in Dark Matter. Dark Matter is 27% and Dark Energy is 68% of the Energy of the Universe.
OK? Now Dark Energy. That has been discovered to be pushing matter apart, all over. If light had to travel gravity tortured paths to get here, and it seems to have, then those twisty, tortured paths has changed very significantly in the last 17 billion years. Dark Energy has been at work, the entire time, making the light journey longer and longer. The also means the universe is likely much less old and less wide than we ever thought before, I think.
But, I am not carefully defending the career choice and the buy in of Cosmological Physics. I am free to think for myself.

http://www.blogs.discovermagazine.com
On that subject, now that we know about gravity lensing, how far out there is "stuff" anyway? If we go by light speed only, and we do, we calculate the straight line distance, only.
Now we know there is no straight line distance, what so ever, for light on the scale of the Universe. All light is bent significantly many times and in many directions before it finally gets here.
It reminds me of that fact about Solar Photons. They are born deep inside the sun but the route to get out is so tortured with the density interactions, that what should have taken only a few seconds, takes 10 million years. The point is, if we only had the light path to measure the Sun, it would seem to be 20 million light years across. See what I mean? The Sun is only about 864,938 miles across. The Solar Photons are slowed by more than 95%.
So, it could turn out that the oldest light has been traveling for 17 billion years, across a 17 billion light year path, and is around 17 billion years old as measured by the non-gravity affected Big Bang microwaves. But we have no idea how tortured these paths were. So we have no idea how far it is, straight line, to the far galaxy edge. It could easily be only 1/10 as far, like 1.7 billion light years.
Here are some tortured light paths discovered in Dark Matter. Dark Matter is 27% and Dark Energy is 68% of the Energy of the Universe.


OK? Now Dark Energy. That has been discovered to be pushing matter apart, all over. If light had to travel gravity tortured paths to get here, and it seems to have, then those twisty, tortured paths has changed very significantly in the last 17 billion years. Dark Energy has been at work, the entire time, making the light journey longer and longer. The also means the universe is likely much less old and less wide than we ever thought before, I think.
But, I am not carefully defending the career choice and the buy in of Cosmological Physics. I am free to think for myself.