Wednesday, March 10, 2010

Final Blog Post

Why study Astronomy? There are many reasons to observe and study Astronomy. It effects our lives in many different ways. Such as the sun provides energy for us to live and the sun also provides radiation which powers our atmosphere and weather. The Earth's spin creates day and night for us to sleep and be active in our daily life. Also the Earth's axial tilt gives us seasons to enjoy the different temperatures and atmospheres surrounding us. Finally the Earth's orbit provides us with an annual calender. The sun and moon together cause tides and the moon alone causes eclipses. Astronomy is one of the oldest sciences and throughout the past how many years scientists have came up with many observations and ideas on how our solar system effects our day to day lives.
Why separate science/religion? Religion is understanding the purpose and meaning of our own universe, including our own lives. Religion can be known as creationism, spoon bending, and ESP; whereas, science can be known as evolution, global, and climate change. Many factors fall between science and religion including astrology, tarotcards, and horoscopes. This is called pseudoscience, it falls between science and religion because they are interchangeable. Science is observing, collecting evidence, and drawing conclusions. It is actually when you perform experiments and collect date. Religion is more who and why. It goes more into detail of why things happen in our universe and who came up with these such ideas. In religion, people believe Earth was created by god. In science, people believe the Earth was created by circular planets blowing up and breaking apart creating new planets such as Earth
What are three things you will remember? There are many things I will remember form this class because I have learned many new things. One big thing I learned is that the solar system in our universe is huge! There are many things we have yet to find out in our solar system because it is so big. The second big thing I learned is the order of the planets. I had an idea where they were at based on each other, but never really knew exactly where they were at. Also I didn't know they were separated by gas and rocky planets. One last thing I learned was the plate tectonics and the sea floor spreading. It was cool to see why volcanoes and earth quakes happen in our oceans and what causes them to react. The three main ideas I learned were divergent, convergent, and transform.
I have learned many things and I'm glad I got to be part of this great class. I had a lot of fun and I will miss coming. Thanks Ma! :))

Monday, March 8, 2010

Hubble Galaxy/Deep Field

The Hubble Deep Field North is one of the deepest, sharpest, multi-color images of the faintest universe in visible light. The Hubble Space Telescope was pointed into an empty point in the Northern sky to observe about a thousand never-before-seen galaxies in the universe. The Hubble Deep Field South complements the original Hubble Deep Field.
The objects in the sky are about 2 to 10 billion light years away so when we view the galaxies they appeared 2 to 10 billion years ago in the early universe. The depth of the Hubble Deep Fields are equal to billions of light years.
By looking in the sky, you can tell there are many different galaxies amongst the universe. Some known as elliptical, spiral, and irregular. They also have different frequencies, which make them their own galaxy. Sometimes you may come across very faint and dull galaxies or you may come across very bright and distinguished galaxies. The size difference of galaxies can vary also.