Sunday, May 16, 2010

Blogpost#3

Planet Quest (when you get to this site, click on "4 ways to find a planet" on the right side)

1. What are the four ways scientists can detect planets?
Radial Velocity, astrometry, transit method, and optical detection.


2. Which way makes the most sense to you? Explain it.
Radial velocity makes more sense to me. Measures slight changes in the position star that happens as it is tugged to and fro by a planets gravitational pull. The changes in direction can be detected by measuring the Doppler effect, the change in frequency of light waves caused by a stars motion away from or torward an observer.



The Goldilocks Zone
3. Explain the concept of the "Goldilocks Zone."
The Goldilocks Zone is an area of space where a planet is just the right distance from its home star, or sun, so that the surface is neither too hot nor too cold. This means that the planet could possibly have liquid water.


4. If Gilese 581c does have life, what do you think it would look like? How would it act? Would it be intelligent?
It might look like us or like weird creatures. I hope they would act nice towards us and we could get alond with each other. I think it would be intelligent. I hope they are talking craetures.


 
5. Do you believe in aliens? Why or why not? Give me a solid paragraph.
I do believe in aliens. There has to be another race out in our big universe. I highly doubt we are the only ones alive.

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