How old is our universe?

1. How old is our universe?

2. Describe the Big Bang Theory.

3. What type of Galaxy is the Milky Way?

5. Give several examples of different types of wavelengths.

6. Based on the Hertzsprung-Russell diagram, describe our sun.

7. Identify the phases of the moon in the diagram below.


8. What was the name of the Russian satellite launched in 1957?

9. You are the project manager for the newest effort to study the proto-planet Pluto. This will not be an easy job because of the planets great distance from earth. What "tools" would be most suited to this kind of mission? (More than one tool could be used, but think about which is best for this type of mission.)

10. The energy produced by the sun is produced by the process of__________.

11. We study the sun for various reasons. One such reason is that events on the sun, such as solar flares and prominences can affect the solar wind/weather that reaches the earth. This in turn can have a negative effect on ___

1) 6 billion years
2)The Big Bang Theory states that we were made from noting.
8)Spintuk sattelite
10) The sun's energy is the form of nuclear power.

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1. 13.6 billion years. The earth is 4566 million years old; the event that created the moon was 4320 million years ago.
6. Main sequence.
8. Sputnik.
10. Thermonuclear fusion.
11. Communications, and on electric power distribution.

Scienstists have said that the universe is almost billions of years old. But we cannot really tell the exact/specific number of years because no one really knows when is it started ( the world).

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