Wendy Freedman - How Far Does the Cosmos Go?

Look up at the night sky. Some of those twinkles are not stars but galaxies, each with tens or hundreds of billions of stars. Even dark parts of the sky, empty to our eyes, are bright to the Hubble Telescope, teeming with innumerable galaxies. Now with multiple universes of various kinds, how far can the cosmos go?

[mdbosley]

The light we see is only 13.7 billion years old from our frame of reference.
From the lights frame of reference it has been traveling for no time and has traveled through no space. From the lights point of view it's source and destination are co-located.

[tedlemoine]

but the radius is more like 46 billion ly due to the expansion of space itself

[stylesofsaturn]

Time is not linear, it goes in cycles. The way we see the past is very different then thousand of years ago like our ancestors did. It is hard to say how old is our galaxy is as time is not actually real. If our mind creates reality like the double split experiment says, then our cosmos can stretch out and stretch back in just depending on the conscious level we are at and other beings as well in the universe.

[zatoichiable]

Whats the ultimate goal in knowing all this?

[MaloPiloto]

I have heard, though, that astrophysicists have actually observed a galaxy that they measured as being 32 billion years distant. The explanation is that the universe (space itself) is expanding…..