How do we see the observable universe?

Answer 1

Either via visible light or by using sensor which detect the extremes of the light spectrum.

Since the invention of the first telescope, humans have been able to peer into space with ever-larger and more advanced telescopes. However, these telescopes are only able to observe visible light. The Hubble telescope, on the other hand, gathers light over time. Since the light it gathers is not impacted by Earth's atmosphere, it provides us with incredibly clear images of distant galaxies and objects. The ability to focus on a specific area of the universe, such as a galaxy located approximately 13 billion light years away, allows for the continuous collection of light (data) from that galaxy, leading to even better images. To understand this, consider the following: if Hubble took a single second picture of that distant galaxy, it might gather in 1000 data points. However, by extending the data collection into minutes, hours, and even days, the picture

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Answer 2

The light that celestial objects emit travels through space and reaches our eyes or telescopes, enabling us to observe and study the objects in the universe. This light is what allows us to see the observable universe.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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