Why is space black?

Why is space black?

Assessment

Interactive Video

Physics, Science

University

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

The video explores why space appears black, starting with Olbers Paradox, which questions why the night sky isn't as bright as a star if the universe is infinite. It explains that the universe is finite and expanding, supported by the Hubble constant and redshift observations. Human vision limitations also contribute to the perception of a black night sky, as our eyes can't detect the dim colors present. The video concludes by linking these concepts to broader questions about the universe's nature.

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3 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What evidence suggests that the universe has a beginning and is not everlasting?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

How do human eyes perceive colors at night compared to during the day?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

What role does Rayleigh scattering play in the color of the night sky?

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