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How is star gazing like time travel?
Star gazing can be compared to time travel because when we look at stars in the night sky, we are looking back in time due to the vast distances light has to travel to reach us. The light we see from stars can be thousands or millions of years old, so in a sense, we are seeing how those stars looked in the past. It's a way to connect with the history of the universe and experience a sense of time beyond our own.
Suggest why looking at distant stars allows us to look back in time?
Looking at distant stars allows us to look back in time because light takes time to travel across vast distances in the universe. When we observe a star that is, for example, 1,000 light-years away, we are seeing the light that left it 1,000 years ago. This means we are witnessing the star's past state rather than its current one. As a result, the farther away a star is, the further back in time we are looking.
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 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.
When we look into the night sky we are actually looking into the past. How do you explain this?
The speed of light is not infinite. Even the light from our own Sun takes over 8 minutes to reach us and it is so much closer than any star. The light from Alpha Centauri takes over 4 years to reach us so when you look at it tonight you are seeing what it was really like in 2004. If it exploded last year we wouldn't know about it until 2012/13 when the light reached us. And Alpha Centauri is one of the three nearest stars!
Are we looking at the past when we observe stars?
Yes, when we observe stars, we are looking at the past because the light from stars takes time to travel to Earth, so we see them as they were in the past.
Why do people say looking at stars is like looking in the past?
Because the speed of light is finite (around 186,000 miles per second) and the stars are so distant, it takes a long time for the light to reach the telescope from the stars - at least 4.2 years. Many objects are millions of light years distant, meaning that what we see in the sky is from the distant past.
What is the past tense continuous of look?
I/he/she/it was looking. You/we/they werelooking.
When we look at the stars in the sky, do we see them as they were in the past?
Yes, when we look at stars in the sky, we are seeing them as they were in the past because the light from stars takes time to travel to Earth, so we are seeing them as they appeared at a certain point in the past.
What is past tense of looking?
The past tense of look IS LOOKED.
What are the tenses for look?
Present: I look Past: I looked Future: I look Past progressive: I was looking Present progressive: I am looking Future progessive: I will be looking Imperative: I have looked etc.
When we look into the sky we are actually looking into the past how do you explain that?
we are looking into the past all the time Jill
Are you looking at past when you look at stars?
Because starlight takes over four years to reach us from even the neaarest star, we can say we are looking into the past when we look at stars. Therefore some stars might have exploded already but we would not know until their light reached us. The delay in the apparent positions of Jupiter's four main moons at times when Jupiter was far away was used by Ole Romer to make an early estimate of the speed of light.
When we look into the night sky we are actually looking into the past how do you explain that?
we are looking into the past all the time Jill
What is the past perfect progressive tense of look?
The past perfect progressive tense of "look" is "had been looking."
Do you really look in to the past when you look through a telescope at galexes light years away. why?
Yes it is true. we actually look in the past when looking at distant galaxies. It is because the light emitted by the billions of stars in the galaxies take thousands of millions of years to reach our eyes. So whatever we are looking in the sky has taken place in past. What is happening in the present, we will only know after the light emitted from the object reaches our eyes.
Are we seeing stars in the past when we look up at the night sky?
Yes, when we look up at the night sky and see stars, we are actually seeing them as they were in the past due to the time it takes for their light to reach us.
