full transcript

From the Ted Talk by Risa Wechsler: The search for dark matter -- and what we've found so far

Unscramble the Blue Letters

So how do we figure out more about this? What is it, and what does it have to do with our existence? Well, in order to figure out how we came to be, we first need to understand how our gxaaly came to be. This is a pirctue of our galaxy, the Milky Way, today. What did it look like 10 billion years in the past or what would it look like 10 billion years in the future? What about the stories of the hdurdens of millions of other gialxaes that we've already mapped out with large surveys of the sky? How would their histories be different if the universe was made of something else or if there was more or less matter in it? So the isentrneitg thing about these model universes is that they allow us to test these possibilities.

Open Cloze

So how do we figure out more about this? What is it, and what does it have to do with our existence? Well, in order to figure out how we came to be, we first need to understand how our ______ came to be. This is a _______ of our galaxy, the Milky Way, today. What did it look like 10 billion years in the past or what would it look like 10 billion years in the future? What about the stories of the ________ of millions of other ________ that we've already mapped out with large surveys of the sky? How would their histories be different if the universe was made of something else or if there was more or less matter in it? So the ___________ thing about these model universes is that they allow us to test these possibilities.

Solution

  1. galaxy
  2. hundreds
  3. interesting
  4. galaxies
  5. picture

Original Text

So how do we figure out more about this? What is it, and what does it have to do with our existence? Well, in order to figure out how we came to be, we first need to understand how our galaxy came to be. This is a picture of our galaxy, the Milky Way, today. What did it look like 10 billion years in the past or what would it look like 10 billion years in the future? What about the stories of the hundreds of millions of other galaxies that we've already mapped out with large surveys of the sky? How would their histories be different if the universe was made of something else or if there was more or less matter in it? So the interesting thing about these model universes is that they allow us to test these possibilities.

Frequently Occurring Word Combinations

ngrams of length 2

collocation frequency
dark matter 23
billion years 3
small galaxies 3
small clumps 3
model universes 2
big bang 2
dark energy 2
million galaxies 2
light distorted 2
magellanic cloud 2

Important Words

  1. billion
  2. existence
  3. figure
  4. future
  5. galaxies
  6. galaxy
  7. histories
  8. hundreds
  9. interesting
  10. large
  11. mapped
  12. matter
  13. milky
  14. millions
  15. model
  16. order
  17. picture
  18. possibilities
  19. sky
  20. stories
  21. surveys
  22. test
  23. today
  24. understand
  25. universe
  26. universes
  27. years