Wednesday, October 30, 2013

Introduction to Space Science


Hello "learnstronauts!"

Just how big is Planet Earth? How big and how far away are Earth's moon and the Sun? What planets make up our solar system? What is a galaxy? What exactly are stars anyway? We'll be exploring these and other questions throughout our study of Space Science this semester. 

Please comment! 
What is the most interesting thing you learned today about space? 
What most surprised you?
What would you like learn more about? 

48 comments:

  1. Dear Mr. Pahl
    I can't get over how awesome that movie is. I mean I did't even know about those bigger stars.
    From, Claire

    ReplyDelete
    Replies
    1. Dear Claire,
      I agree that there were a lot of stars that were pretty big.
      Sincerely Ludvig

      Delete
  2. Dear Class,
    I thought I knew a lot about space but I guess I was wrong. I never thought that the Earth was so small compared to Neptune and Jupiter. It is crazy how big planets are don’t you think?
    From, Gavin

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    Replies
    1. Dear Gavin, maybe there is a planet as big as our universe, but that planet is inside another universe 1,000 times as big as our universe, because we only discovered 1/6 of our own universe. There are lots more to discover, Gavin, what if there was actually life on a very large planet on the outskirts of our universe? Who knows what is out there in space, maybe a square planet with triangular aliens?
      From, Fiona

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  3. I was very interested in that video because I didn’t know how big stars and planets can get. How big can the universe possibly be?
    Sincerely,
    Sophia

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    Replies
    1. Dear Sophia, I don't know how big our universe is except all I know is that our universe is 14 gigaparsecs (the largest unit of measurement) in diameter. The Great Sloan Wall is made of galaxies and is 1.38 billion light-years long, the largest object in the universe, but we don't live in it. Maybe there will be a probe sent from NASA to discover unknown universes! Have a nice day!
      From, Fiona.

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  4. Dear Mr. Pahl,
    Thank you for letting us do science about Space. I am starting to enjoy it already because I didn’t know that there were more than 1 galaxy in Space.
    Sincerely,
    Avery

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  5. Dear Mr.Pahl, I never knew that it would take 1,100 to 1,200 years for an airplane to travel around V.Y.Canis Majoris! I learned the “1,200 years" part from Scale of The Universe 2, but this episode was awesome because it showed how small the sun is from all the giants and supergiants. Maybe we can play Scale of The Universe 2 someday to learn all about this topic.
    Sincerely, Fiona Cooper.

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  6. Dear Class,
    I can’t wait to learn more about space! It’s so fun and interesting to learn about and I also did not know how big those stars were! I wonder how far away the Milky way is from our solar system?
    Sincerely,
    Karoline

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    Replies
    1. Dear Karoline, our solar system IS in the Milky Way galaxy, because people keep saying we live in the Milky Way and those astronomer people are right, we live on the Sagittarius arm of our galaxy, the arm closest to the outer arm.
      If our solar system was not in the Milky Way, we wouldn't find more solar systems, and life facing nosy stars is NOT a pleasant experience if we didn't live in the Milky Way. Have a nice day!
      From, Fiona.

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  7. Dear Mr. Pahl I love space science it is fantastic.


    Sincerely
    Makani

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  8. Dear Mr. Pahl I didn’t know that there was the biggest star but now I know thanks Mr. Pahl sincerely, Sebastian

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    Replies
    1. Dear Sebastian, there could be bigger stars, because V. Y. Canis Majoris is the biggest star ever DISCOVERED. There can be more than googleplex unknown stars, even thinking V. Y. Canis Majoris is as small as a speck of dust. Maybe there is a universe that thinks our universe is 1/1,000,000 its size. Have a nice day! From, Fiona.

      Delete
  9. Dear Mr.Pahl,
    It is hard to believe red supergiants can get so big.
    Sincerely, River

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  10. Hello Julia,
    Don’t you think that it is amazing how big stars can get like VY Canis Majoris (Red Hypergiant).
    I think it is vary interesting to learn about space science because I have always been interested in space and learning about. Do you like learning about space?
    Sincerely,
    Phoebe

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  11. Dear Mr. Pahl,
    I did not know there was giant stars in space. And it is amazing that there is 3 billon glaxacies in space that we can learn about.
    From, Xavier

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  12. Dear, Mr. Pahl
    I never knew the planets were that big.

    From, Eli

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    Replies
    1. Dear Eli
      actually, the big glowing spherical objects are stars! A planet that big would have so much gravitational pull that it would attract everything (even stars) into itself! But who knows. The universe is full of mysteries. Maybe there ARE planets that grow that big. Who knows?
      From,
      Finnigan (A kid that was in Mr. Paul's class but is in 6th Grade now)

      Delete
    2. Dear Eli,
      I have the same thoughts as you. I thought that red giants big where until I saw even one star that was bigger, but I had no idea that there was a such thing as a red supergiant, let alone a red hypergiant. Sincerely, River.

      Delete
  13. Dear Mr Pahl,
    I`ve always wanted to learn about our universe. Now I know about the stars and the planets and now I know way more!

    Sincerely,
    Shawn

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    Replies
    1. Dear Shawn,
      I agree with you that I thought I knew a lot about space but now I know even more. I hope that I keep learning awesome new things don’t you?
      From, Gavin

      Delete
  14. Dear Mr. Pahl,

    This video was so cool. It is awesome to see how small the earth is in comparison to the other planets and stars.

    From,

    Jen (Sophia's mom)

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  15. Dear Mr. Pahl,

    Odd how there are things in the universe that make our planet seem small, but gets dwarfed by something bigger.

    Sincerely,

    Sylvia

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    Replies
    1. Dear Sylvia, I think our universe can get dwarfed by something way bigger, too, perhaps maybe we are inside a black hole that is 90 times bigger than our universe, with lots of universes inside it, which may solve the mystery why the sky in outer space is pitch black to our universe. There might also be alien giants dwarfing us to 1/9,000,000,000,000 their size!
      From, Fiona

      Delete
  16. Dear Mr. Pahl.
    I’ve always wanted to study science. Science has always amazed me.
    Sincerely Makani

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    Replies
    1. Dear Makani.
      I agree with you. Science has also always amazed me because of how you never know how things are going to turn out.
      From, Gavin

      Delete
    2. Dear Makani,
      I agree science has always amazed me too.
      Sincerely Ludvig

      Delete
    3. Dear Makani,
      I agree science has always amazed me too.
      Sincerely, Ludvig

      Delete
  17. Dear anyone who reads this,
    Just think the sun is like x100 bigger than the earth and the sun is like x100 smaller than some of the stars!
    From, Linnea

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    Replies
    1. Dear Linnea, there might be something that is not a universe that is 9,000,000,000 times bigger than our universe that is not a universe. What could it be? What does space look like if we zoom out of our home universe? Just keep questioning and have a nice day! From, Fiona.

      Delete
  18. Dear Mr. Paul
    Did you know that when we see those stars on a telescope the light from that star takes 1,000s of years to get to Earth. So we are looking at the star over 1,000 years in the past! Which makes scientist think that if you look far enough into the universe you will see the big bang!
    From,
    Finnigan

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  19. Dear room 12 Space Cadets,
    We are just tiny specs of dust (or maybe even smaller) in this solar system. This solar system is just a tiny spec of dust (or even smaller) in this galaxy. This galaxy is just a spec in the Universe, and this universe is just a tiny spec in, who knows what.
    There is much to learn.
    Fiona's Dad, Matt.

    ReplyDelete
  20. Dear Mr. Pahl,
    It most surprised me when I saw how many other stars we know about. I would like to learn more about dwarf planets and how the solar system was formed.
    From, Linnea

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  21. Dear Room 12,
    I really liked those huge stars especially the Red Hypergiant it was my favorite fact was it took 1100 days to circle it one time
    Sincerely, Gurshaan (Devins Little Brother)

    ReplyDelete
  22. Dear Mr. Pahl,
    I did not know there were that many stars or planets. Including the size of Neptune. It is a giant planet and Sirius A is bigger than the sun. The pistol star you would think it is the biggest star ever compared to the sun because I can’t believe it is so big. I can’t believe VY Manis Majoris is so big it is giant.
    From Benjamin,

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  23. Dear, Mr. Pahl,
    I had no idea that there was a star bigger than the sun, and I can’t believe that it would take 1100 years to just circle one time around VY Canis Majoris!!
    By: Elizabeth

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  24. Dear Mr. Pahl,
    I can’t believe that there could be so many dwarf planets in our solar system, but I was surprised that Earth was made from the sun and all the other planets. I wonder how are planet made water.
    Sincerely, your student Charlie

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  25. Dear 4th graders,

    There are 8 planets but if you count the dwarf planets that would be 8+3=11 planets in our solar system.
    The stars that we know that are suns to different planets we only know 10 stars the biggest one that we know is VY Canis Majoris (red hyper giant).

    Sincerely,
    Eric

    ReplyDelete
  26. Dear, Mr. Pahl,
    I wonder if the Heliosphere is like a bubble and is the Heliosphere bubble blue at all? And is there more outside of the Heliosphere bubble?
    By: Elizabeth

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  27. Dear Mr. Paul,
    I was surprised that there could be such a big star in the universe but yet it is just middle sized star right. I mean it would take about 1,100 years to get there.
    Sincerely, your student Charlie

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  28. Dear Mr. Pahl,
    No I could not imagine that size of VY canis majorois I mean 2.8.00.000.000 km.!
    Sincerely, Charlie

    ReplyDelete
  29. Dear Mr. Pahl and fourth graders,
    Wow that video I just watched is so amazing! I had no idea that there are 9 other different stars out there that is bigger than the sun!
    I’m amazed,
    From, Ellis

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  30. Wow I couldn’t believe my self it would take 1100 year’s just to go around VY Canis majoris.
    My name is Jackson

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  31. Dear Mr. Pahl,
    I want you to teach us how big VY Canis Majoris the largest known star is compared to Earth Moon. It would be amazing for you to teach us how warm VY Canis Majoris is. I would love to know how close to VY Canis Majoris you can get to without burning.
    Sincerely,
    Kyle

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  32. Dear Mr. Pahl,
    I couldn’t believe that how big Vy canis majorois. It is super big!
    From, Maximus

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  33. Dear Mr. Pahl,
    I am glad I watched that video I had no idea there were that many stars. But I could not imagine the canis majorois 2.800.000.000 km.
    From,Sarah.H

    ReplyDelete
  34. Dear fourth graders,
    I think it’s so cool that the planets just keep on getting bigger and bigger as it gets farther and farther away from earth and at the very last and biggest planet it shows earth. It’s such a tiny dot.
    Sincerely,
    Neri

    ReplyDelete
  35. Dear Mr. Pahl,
    I never knew that there was a star that was humongous compared to Earth. I really want to learn about different galaxies and planets like Venus and Saturn. I hope you show us more videos about space because your showing and teaching us about things we never knew about!
    Charlize

    ReplyDelete

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