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How do you see into the past when you look at the light from a star?
Wiki User
∙ 11y ago
You don't! No person in the world can look back into past in any way even if you look at a star of any type. For more information type the word "CLICK" in the "Ask us anything" box on the top of the page.
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Wiki User
∙ 11y ago
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Can what you see really be what it is?
Light's speed is finite, so when you look out into space and see a star, you're seeing into the past, so it might have gone supernova or something.
When looking at stars do you see the star or its light?
You see the light it gave off in the past, not now. The star you see now could have died years ago, but its light is still trying to reach earth.
When you look into the sky we think you can see the past why is that?
ORIGINAL ANSWER:"Yes because you see something happen a few milliseconds after they actually happen." ADDITIONAL ANSWER: The person who answered this before me is technically correct. But another way to see into the past is just to look up at the night sky. Every star that you see is actually in the past. This is because light takes time to travel across the vast distance of space. Even the light that we see from our Sun is 8 minutes in the past.
How is distance related to the past history of the universe?
Light is purpose why we see universe physically, and light travels, so when we look at the stars we are really looking at the past of those stars. For example let's say a star is 37 light years away this means when you look at this star you are looking at it 37 years ago. If this star were to dissapear you will still see this star in the sky for 37 more years and then you will see it go out. Same with our sun, if the sun vanished it would take us 10 mins to see it. Here is another fun thought if you heard a sun burt out in space 40 years ago you know that if you instantly traveled 41 light years away you could look back and still see the sun that was gone 40 years ago burning and even get to see what happened to it.
How can people literally see the past by using light waves?
Here's the example that illustrate what you just asked. I will be using this example from astronomy. When you look up the sky to the stars, you are literally seeing into the past. The distance from you to the star you are looking at is x lightyears away. Lightyear is distance light travles in 1 year. So if a star is, say 100 lightyears away from you, then you are seeing the state of the star that much time ago.
If it takes 100000 years for light to travel across the milky way how do you know that the star is even there when you see the light from it?
Quite simply, you don't. You see the star in the past - this may be 4 years in the past, in the case of Rigil Kentaurus, 30,000 years for a star in the center of our Milky Way, 2-3 million years in the case of the Andromeda Galaxy, or billions of years in the case of a quasar (the latter is not a star).
When using a telescope to observe stars some say they are observing the past instead of the present because?
Because light takes time to travel from one place to another.You don't need a telescope to observe the past.When you look at the moon, the light that enters your eyes left the moonabout 1.28 seconds ago.When you look at the sun, the light that enters your eyes left the sunabout 81/3minutes ago.When you look at the nearest star outside the solar system, the light thatenters your eyes left the star more than 4 years ago.You see every other star as it used to be, even farther back in the past than that.When you look at the North Star (Polaris), the light that enters your eyes left itabout 323 years ago. If the North Star exploded on the day George Washingtonwas born, we'll see the explosion in 2055 .When you look at the refrigerator, 10 feet away at the other end of the kitchen,you're seeing it as it was about 0.0000000102 second ago.
Is it look PASSED the beauty and see the ugly or look PAST the beauty and see the ugly?
Past
Why do you see a star how it was?
You see a star as what it used to look like because the light from the stars takes so long to get to Earth. While the light it making its way to Earth the stars are burning out, some of the stars we can see may have been burnt out for millions of years now!
Why do you see stars as they were in the past?
The idea is that it takes a while for the light from the stars to reach us. A few years... or a few billion years, depending on what star you are talking about.
Why do star seen to twingkle?
Star is so far from us it reflects light travel many distance and we see it. Just see if distance between the light sorce and we is more we see a pin of light. So we see the star looks like a dot or twinkle at night
Is it possible to look into the past?
yes it is, we are all energy(light). whwen we observe things that are light years away, we are actually looking at the image displayed years ago. so if we figuere a way to reverse and see earth from light years away, we would be able to see the earth at that same time in the past.
