full transcript

From the Ted Talk by Jeremy Kasdin: The flower-shaped starshade that might help us detect Earth-like planets

Unscramble the Blue Letters

That's not snicece fiction. We've been working on this for the last five or six years. Last summer, we did a really cool test out in California at Northrop Grumman. So those are four petals. This is a sub-scale star shade. It's about half the size of the one you just saw. You'll see the petals unfurl. Those four petals were bluit by four undergraduates doing a summer internship at JPL. Now you're seeing it deploy. Those petals have to rottae into pclae. The base of those pteals has to go to the same place every time to within a tnteh of a mellmieitr. We ran this test 16 times, and 16 times it went into the exact same place to a tenth of a millimeter. This has to be done very precisely, but if we can do this, if we can bliud this technology, if we can get it into space, you might see something like this. That's a picture of one our nearest neighbor stars taken with the Hubble Space Telescope. If we can take a similar space telescope, slightly lergar, put it out there, fly an occulter in front of it, what we might see is something like that — that's a family portrait of our solar system — but not ours. We're hoping it'll be someone else's solar system as seen through an occulter, through a sthadsrae like that. You can see Jupiter, you can see Saturn, Uranus, Neptune, and right there in the ctener, next to the residual light is that pale blue dot. That's ertah. We want to see that, see if there's water, oxygen, ozone, the things that might tell us that it could harbor life.

Open Cloze

That's not _______ fiction. We've been working on this for the last five or six years. Last summer, we did a really cool test out in California at Northrop Grumman. So those are four petals. This is a sub-scale star shade. It's about half the size of the one you just saw. You'll see the petals unfurl. Those four petals were _____ by four undergraduates doing a summer internship at JPL. Now you're seeing it deploy. Those petals have to ______ into _____. The base of those ______ has to go to the same place every time to within a _____ of a __________. We ran this test 16 times, and 16 times it went into the exact same place to a tenth of a millimeter. This has to be done very precisely, but if we can do this, if we can _____ this technology, if we can get it into space, you might see something like this. That's a picture of one our nearest neighbor stars taken with the Hubble Space Telescope. If we can take a similar space telescope, slightly ______, put it out there, fly an occulter in front of it, what we might see is something like that — that's a family portrait of our solar system — but not ours. We're hoping it'll be someone else's solar system as seen through an occulter, through a _________ like that. You can see Jupiter, you can see Saturn, Uranus, Neptune, and right there in the ______, next to the residual light is that pale blue dot. That's _____. We want to see that, see if there's water, oxygen, ozone, the things that might tell us that it could harbor life.

Solution

  1. built
  2. tenth
  3. petals
  4. starshade
  5. rotate
  6. science
  7. larger
  8. place
  9. millimeter
  10. center
  11. earth
  12. build

Original Text

That's not science fiction. We've been working on this for the last five or six years. Last summer, we did a really cool test out in California at Northrop Grumman. So those are four petals. This is a sub-scale star shade. It's about half the size of the one you just saw. You'll see the petals unfurl. Those four petals were built by four undergraduates doing a summer internship at JPL. Now you're seeing it deploy. Those petals have to rotate into place. The base of those petals has to go to the same place every time to within a tenth of a millimeter. We ran this test 16 times, and 16 times it went into the exact same place to a tenth of a millimeter. This has to be done very precisely, but if we can do this, if we can build this technology, if we can get it into space, you might see something like this. That's a picture of one our nearest neighbor stars taken with the Hubble Space Telescope. If we can take a similar space telescope, slightly larger, put it out there, fly an occulter in front of it, what we might see is something like that — that's a family portrait of our solar system — but not ours. We're hoping it'll be someone else's solar system as seen through an occulter, through a starshade like that. You can see Jupiter, you can see Saturn, Uranus, Neptune, and right there in the center, next to the residual light is that pale blue dot. That's Earth. We want to see that, see if there's water, oxygen, ozone, the things that might tell us that it could harbor life.

Frequently Occurring Word Combinations

ngrams of length 2

collocation frequency
space telescope 4
ten times 4
pale blue 3
blue dot 3
solar system 3
harbor life 2
hubble space 2
nearest neighbor 2
billion times 2

ngrams of length 3

collocation frequency
pale blue dot 3
hubble space telescope 2

Important Words

  1. base
  2. blue
  3. build
  4. built
  5. california
  6. center
  7. cool
  8. deploy
  9. dot
  10. earth
  11. exact
  12. family
  13. fiction
  14. fly
  15. front
  16. grumman
  17. harbor
  18. hoping
  19. hubble
  20. internship
  21. jpl
  22. jupiter
  23. larger
  24. life
  25. light
  26. millimeter
  27. nearest
  28. neighbor
  29. neptune
  30. northrop
  31. occulter
  32. oxygen
  33. ozone
  34. pale
  35. petals
  36. picture
  37. place
  38. portrait
  39. precisely
  40. put
  41. ran
  42. residual
  43. rotate
  44. saturn
  45. science
  46. shade
  47. similar
  48. size
  49. slightly
  50. solar
  51. space
  52. star
  53. stars
  54. starshade
  55. summer
  56. system
  57. technology
  58. telescope
  59. tenth
  60. test
  61. time
  62. times
  63. undergraduates
  64. unfurl
  65. uranus
  66. water
  67. working
  68. years