Distances are depending on many things in this universe but what is if it isn't like we expect too be?
2006-08-07 22:24:54 · 8 answers · asked by Chacko 2 in Science & Mathematics ➔ Astronomy & Space
Everybody says that Dark matter is absorbing light.
What is if dark matter actually is reflecting the light?
You look at it but you can not see it.
Instead you see other things.
Things which might be not that far away as we think they are.
Things which might be much further away as we think they are.
We can only measure the distance by the light.
But if some lights are in space actually reflected by something than a lot of calculations are wrong.
2006-08-10 08:28:06 · answer #1 · answered by Anonymous · 1⤊ 0⤋
I don't know of any mirror images in space, but you're right that sometimes there are images of objects. Gravitational lensing is what happens when light from a distant object (say a quasar)bends around a massive object closer to us (say a massive elliptical galaxy), making it seem like the quasar is closer than it is. Check out the website below for a diagram of how the light bends. The second website shows a great picture of the effect, sometimes called the "Einstein cross" or "Einstein ring" depending on the shape of the image. The lensed image is much brighter than it would be without lensing, giving astronomers a chance to observe the most distant objects known today.
So how can we tell distance when objects can be lensed? Luckily, lensing doesn't affect redshift - the amount photons have stretched. The light from a lensed quasar has still travelled the same amount of distance through space (or very close anyway) and the photons have stretched by the same factor. So determining distance from redshift is pretty easy.
2006-08-08 01:31:00 · answer #2 · answered by AK 1 · 1⤊ 0⤋
u know? whatever u r seeing infront of u- all those are past!! yes relative. nothing is constant.
2006-08-07 22:36:59 · answer #3 · answered by njoy 2 · 0⤊ 1⤋
One day we may know...
It's all relative...
2006-08-07 22:27:23 · answer #4 · answered by chapers 3 · 0⤊ 1⤋
yeah...we need to have another theory for that...lol
2006-08-07 22:27:26 · answer #5 · answered by aRnObIe 4 · 0⤊ 1⤋
Well, i donno, i just had my drink with my friends, Neo and Trinity, and they said you know something, but you don't know right.
2006-08-07 22:29:03 · answer #6 · answered by Gersin 5 · 0⤊ 1⤋
than we should stop take drugs;)
2006-08-07 22:28:19 · answer #7 · answered by mrangelosd 4 · 0⤊ 1⤋
so? we all die still anyway.
2006-08-07 22:29:27 · answer #8 · answered by maiax 3 · 0⤊ 1⤋