| | Please write your answers only excluding the original questions. |
|1 |The sun is considered to be a star and is a hot ball of glowing gases. It is known as the heart of our solar system. |
|2 |There are over 200 billion stars in the Milky Way. It is made up of the billions of stars as well as enough gas and dust to make a |
| |billions more. The Milky Way is over 100,000 light years from one end to the other. |
|3 |According to Reeves (1999), “Astronomers, believe that the universe began in a big bang roughly 14 billion years ago” (para. 5). They |
| |believed that a bubble exploded suddenly and the birth of the universe began. Keep in mind this bubble was only about the size of a |
| |pinhead. |
|4 |You are looking back in time because of the speed of light. Light moves 186,000 miles per second. An example of this would be like we see|
| |the sun, eight minutes after the fact. |
|5 |The Earth is the 3rd planet from the Sun. Earth is where we live, and is the only planet that contains life. Earth is the only planet |
| |that is breathable. |
|6 |The Proxima Centauri is the closest star to the Sun, and the Sun is around 150 million kilometers from Earth. |
|7 |The Sun is about 28,000 light years from the heart of the galaxy, and is located in the inner rim of the Orion Arm. It is actually the |
| |entire solar system that orbits the Milky Way. It moves at 828,000 kilometers per hour, and at that rate it would take 230 million years |
| |to complete one orbit around the galaxy. |
|8 |The stars within our galaxy is approximately 100 billion stars. |
|9 |According to Towers (1978), “The Earth is approximately 4.6 billion years old, and the universe is approximately 14 billion years old” (p. |
| |89). |
|10 |The Earth revolves around the Sun at approximately 18.5 miles an hour. The space shuttle is launched with speeds reaching 17,500 miles per|
| |hour. |
|11 |We believe that the galaxies appear to be moving in space; however, they do not move because space itself moves. |
|12 |The Polaris is more commonly known as the North Star. It is the point that is relatively not moving while the whole sky moves around it. |
|13 |Solar eclipses – Once a month the moon orbits around the Earth, and the eclipses occur when the Earth and Sun line up. The moon is between|
| |the Earth and Sun. |
| |Lunar eclipses – This eclipse occurs when the Earth is between the moon and the Sun. It only happens during a full moon. |
|14 |Eclipses do not occur every month because the orbits of Earth, moon, and the Sun do not lie on the same plane. |
|15 |His belief was that the Earth circled the sun. His explanation was simpler than Ptolemy; and therefore, could explain the movement of the |
| |planets. |
|16 |The Earth could not move because there are objects in the air such as birds and clouds and they would be left behind because the Earth |
| |moves along the way. A stellar parallax would be detected if the Earth really did orbit the Sun. |
|17 |Kepler’s Laws tell how the planets move around the Sun. |
|18 |We have seasons here on Earth because the axis is not straight. |
|19 |Yes |
|20 |Asteroids orbit the Sun in between Jupiter and Mars. |
References
Reeves, C. (1999). Understanding the terminology. Retrieved from
