Recent content by yazanhomsi

Hello everyone, My question is: The big bang model proposes that the rate at which the universe is expanding is now decelerating. The inflationary theory proposes that the speed of expansion and separation started out slow and now it is accelerating. But as we know, recently it has been found...

What about Einstein and the cup of tea analogy of the universe? I read it in multiple of books. Isn't he the first one to come up with it?

Good day all, A question that I haven't really found the answer for yet: "Whom did first come up with the idea of the cosmological principle?" I almost looked everywhere for the answer but still cannot find it. Was it Friedmann or Lemaitre? Or was it some other great physicist? But there...

Yeah thanks a lot. I get it now.

Alright got it

And the universe is expanding as well is that correct? So that's why we have a cosmic horizon?

Hello everyone, Questions keep on rushing through my mind. If we can see light from 300,000 years after the big bang (THE OLDEST LIGHT EVER) then why can't we see beyond our cosmic horizon? We are seeing the oldest light ever... then why do we have a cosmic horizon?

Alright i got it all thanks a lot!

Alright I get everything you said but Can you re-explain this part please? I am finding difficulties understanding it.

Thank you for the exercise it really helped anyway to increase my information

Y yep that is what i meant thank you

Alright I kind of understand now what you said. Just to check if I get it. So the universe is 13.7 billion years old, which means light that reaches us NOW has traveled 13.7 billion light years. So the light that will reach us in 27.3 billion years (if we are still alive) would have traveled 41...

Hello everyone! I've been having trouble regarding the age of the universe and another small problem. This problem escalated when I first started reading Dr. Brian Greene's book "The Hidden Reality". The distinction between the two possibilities, that our universe is finite or infinite, plays...

Alright I got it. Thanks a lot you were the only one able to understand my question. Sorry for showing any form of naiveness.

Wait but the density of dark energy is 6.91 x 10 ^ -27. It is still isn't an order of magnitude of 10^-26.