Is the universe expanding, contracting, or staying the same size?
Ariana AcostaExpanding
While more recent observations indicate that the universe is not only expanding, but also accelerating, meaning that the rate of expansion is increasing, Edwin Hubble's observations demonstrated that stars farther away are moving away faster.
This acceleration has no known explanation as of yet.
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Levi AndersonThe cosmos is growing larger.
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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.
- Is our Universe still expanding after the Big Bang?
- On the WMAP image of the cosmic microwave background radiation, are the higher density irregularities the brighter bits or the darker bits?
- How much time has passed since the Big Bang?
- How do humans use electromagnetic energy?
- How many planets in the universe can sustain life?
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