Since starlight takes light years to reach us, and some stars arent there anymore?

Question

That also means that there are TONS of new stars ,that we just don't know exist or can see yet because the light hasn't come?

Answer 1

I'm not sure what your question is but what you've said is basically all correct. That theory is at the base of the "time travel" question. If we can see light from a star that sent its light towards us 10million years ago, we would be looking at it the way it was 10million years ago.

Answer 2

When you get deep into this subject, you will find that there is no simple answer to what is the relationship between time here on Earth, and the time that the light left the star. Just because the light has been traveling for 1 billion years (for example), does not mean that the star is 1 billion years older "right now".

I'm sorry I can't explain it more. General relativity usually takes about a year of study, just for the basics; and that's after you know tensor math. That's why astronomers groan when newspapers print that some galaxy is so many light-years away. There are concepts called "proper time" and "proper distance", also "coordinate time", and other weird stuff.

Answer 3

YES.

You are completely correct.

The closest star to our Solar System is about 4 light Years away. The most distant stars are part of galaxies that are 40 Billion Light Years away from us. So light from them takes,
you got it, 40 Billion Years to get here. So when it finally arrives it is a picture of things long ago, and probably no longer the same at the instant we viewed the sight. This takes a great deal of time to absorb in your mind, but it is true. A really dumb example of this might be looking at a picture of yourself when you were an infant. You have the picture, but that isnt what you look like now.

Answer 4

Once we figure how to jump into Black Holes and space travel safely, we won't know to much about the Universe. Think about it, scientist on this planet have answers to everything by peering out into Telescopes and Mars Rovers.

By taking samples of Earth we have answers about infinite space. Humans, especially those nerdy scientists, give themselves way to much credit.

Answer 5

at first easy do not holiday to the earth from distant stars, it purely is going a definite distance and stages out, in case you have ever been tenting at night and set a lite out you are able to pass a techniques off and nonetheless see the lite, even with the undeniable fact that the lite replaced into not shinning that a techniques, so we are able to work out the stars, does not mean the lite is reaching us.

Answer 6

you are absoloutely correct. i like the way you think. when we look at the sky we are ALWAYS looking at the past. even the sun is eight light minutes away, therefore if the sun was to explode right now, we would not see it for eight minutes. crazy isnt it!!!!! hope this helps!!!!!!

Answer 7

Yeah. Is it weird that I've thought about that before?

Answer 8

I guess you're true.

Answer 9

its possible