What You See Isn't What's There?

Question

Another guy mentioned in my past question that when you look into space, the light you see from stars and whatever other objects in space is actually from millions and billions of years ago. I just find it amazing that anything we see in space is most likely not there, the further it is. Even light from the sun that we see left the sun about 7 or 8 minutes ago. Because of that, can we see the beginning of the universe or is that still billions of years down the line?

Answer 1

there are some gaps in the cosmic microwave background radiation though, and they are trying to explore whether the gaps are portals to even earlier in the universe, or just anomalies of light.

Answer 2

The farther it is away the less chance that it is still there

  If a person is in the same room with you,you are seeing them as they existed hundreds of millions of a second in the past so you are likely right if you assume that they still exist.

Answer 3

You can't see the beginning of the Universe because it happened before there was any light. The closest we can come is the Cosmic MIcrowave Background, which is when the Universe had cooled enough to allow photons to travel freely, about 300,000 years after the Big Bang.

Because of redshifting (the Doppler effect), this light has stretched so far as to become microwaves, rather than visible light. It's just above absolute zero in terms of temperature. We have sent probes up to image this most ancient light. Google COBE to see maps of the sky made by this probe and it's successors.

Answer 4

u can't see the very beginning of our universe but some minutes after it. because exactly when big bang happened no light came out it took light after some time to come out.