full transcript
"From the Ted Talk by Anjali Tripathi: Why Earth may someday look like Mars"

Unscramble the Blue Letters

So it's fine to look at pictures of Mars and say that atmospheric escape probably happened, but NASA has a pobre that's currently at Mars cleald the MAVEN stetialle, and its actual job is to study atmospheric ecapse. It's the Mars Atmosphere and Volatile Evolution spacecraft. And rtlseus from it have already shown pictures very similar to what you've seen here on Earth. We've long known that Mars was losing its arpomtshee, but we have some stunning pictures. Here, for example, you can see in the red cclrie is the size of Mars, and in blue you can see the hydrogen escaping away from the planet. So it's reaching out more than 10 times the size of the planet, far enough away that it's no longer bound to that planet. It's escaping off into space. And this helps us confirm ideas, like why Mars is red, from that lost hryegdon. But hydrogen isn't the only gas that's lost. I mentioned hileum on Earth and some oeygxn and nitrogen, and from MAVEN we can also look at the oxygen being lost from Mars. And you can see that because oxygen is heavier, it can't get as far as the hydrogen, but it's still escaping away from the planet. You don't see it all confined into that red circle.

Open Cloze

So it's fine to look at pictures of Mars and say that atmospheric escape probably happened, but NASA has a _____ that's currently at Mars ______ the MAVEN _________, and its actual job is to study atmospheric ______. It's the Mars Atmosphere and Volatile Evolution spacecraft. And _______ from it have already shown pictures very similar to what you've seen here on Earth. We've long known that Mars was losing its __________, but we have some stunning pictures. Here, for example, you can see in the red ______ is the size of Mars, and in blue you can see the hydrogen escaping away from the planet. So it's reaching out more than 10 times the size of the planet, far enough away that it's no longer bound to that planet. It's escaping off into space. And this helps us confirm ideas, like why Mars is red, from that lost ________. But hydrogen isn't the only gas that's lost. I mentioned ______ on Earth and some ______ and nitrogen, and from MAVEN we can also look at the oxygen being lost from Mars. And you can see that because oxygen is heavier, it can't get as far as the hydrogen, but it's still escaping away from the planet. You don't see it all confined into that red circle.

Solution

  1. satellite
  2. oxygen
  3. hydrogen
  4. probe
  5. atmosphere
  6. results
  7. escape
  8. circle
  9. helium
  10. called

Original Text

So it's fine to look at pictures of Mars and say that atmospheric escape probably happened, but NASA has a probe that's currently at Mars called the MAVEN satellite, and its actual job is to study atmospheric escape. It's the Mars Atmosphere and Volatile Evolution spacecraft. And results from it have already shown pictures very similar to what you've seen here on Earth. We've long known that Mars was losing its atmosphere, but we have some stunning pictures. Here, for example, you can see in the red circle is the size of Mars, and in blue you can see the hydrogen escaping away from the planet. So it's reaching out more than 10 times the size of the planet, far enough away that it's no longer bound to that planet. It's escaping off into space. And this helps us confirm ideas, like why Mars is red, from that lost hydrogen. But hydrogen isn't the only gas that's lost. I mentioned helium on Earth and some oxygen and nitrogen, and from MAVEN we can also look at the oxygen being lost from Mars. And you can see that because oxygen is heavier, it can't get as far as the hydrogen, but it's still escaping away from the planet. You don't see it all confined into that red circle.

ngrams of length 2

collocation frequency
atmospheric escape 17
solar system 4
transiting exoplanets 3

Important Words

  1. actual
  2. atmosphere
  3. atmospheric
  4. blue
  5. bound
  6. called
  7. circle
  8. confined
  9. confirm
  10. earth
  11. escape
  12. escaping
  13. evolution
  14. fine
  15. gas
  16. happened
  17. heavier
  18. helium
  19. helps
  20. hydrogen
  21. ideas
  22. job
  23. long
  24. longer
  25. losing
  26. lost
  27. mars
  28. maven
  29. mentioned
  30. nasa
  31. nitrogen
  32. oxygen
  33. pictures
  34. planet
  35. probe
  36. reaching
  37. red
  38. results
  39. satellite
  40. shown
  41. similar
  42. size
  43. space
  44. spacecraft
  45. study
  46. stunning
  47. times
  48. volatile