Week 8 Earth Sun Moon

 Olivia Langosch 

Our group did a presentation on Black Holes: 

https://docs.google.com/presentation/d/14bM27mx0Vk3m-oDVANH7t9C8XGgOljtD4PLyh7tpS18/edit?usp=sharing

In lab, we got to learn about different topics having to do with the galaxies, universe, stars, etc. There was not a specific Big Question, but we learned a lot from each presentation that were Origin of the universe, Lifecycle of stars, galaxies, origin of earth, black hole, exploration of space: past, present, future. 

Origin of the Universe: 

• Steady state theory: has no beginning or end of time 

• Most current understanding is the Big Bang Theory 

• More stars in the universe than grains of sand on all beaches on earth. 

Life Cycles of Stars: 

• A stars life depends on its mass 

• If it has a larger mass, life is shorter 

Galaxies: 

• Consist of stars, planets, vast clouds of dust, all bound together by gravity. 

Earth: 

• Gravity pulls debris and dust in a cloud pulled down into spheres 

History of Space Travel: 

• 1958→ NASA was created

In lecture, I found it interesting that women are preferred when traveling to space because how how they are lighter, shorter, and consume less food. I also learned more in depth about the Big Bang. I learned in high school about it, but not as in depth because I knew about it, just not much about it. "Subatomic particle inflated to unimaginably huge size in a fraction of a second." I learned more in depth about this because it is so hard to wrap my head around the fact that this happened in that short of an amount of time. I also learned how the Earth was not created from this. It was the universe that was created by this.