In essence, the Kepler mission searched for extrasolar planets by ...

[jazziefee]

In essence, the Kepler mission searched for extrasolar planets by ________.
 
  A) observing a star carefully enough to notice that it is experiencing a gravitational tug caused by an unseen planet
  B) identifying spectral lines that look like what we expect to see from a planet rather than a star
  C) monitoring stars for slight dimming that might occur as unseen planets pass in front of them
  D) obtaining high-resolution photographs of other star systems

Question 2

Relative to the age of the universe, how old is our solar system?
 
  A) It is about 1 as old as the universe.
  B) It is about one-third the age of the universe.
  C) It is nearly the same age as the universe.
  D) It is between about 5 and 10 as old as the universe.

[Awesome]

Answer to Question 1

C

Answer to Question 2

B

[jazziefee]

YES! Correct, THANKS for helping me on my review

[kusterl]

Thanks for the timely response, appreciate it