Space telescopes looking for transiting planets look for small drops in brightness; these dropscan be detected if they are greater than about:
A)10%.
B)1%.
C)0.01%.
D)0.0001%.
E)any size.

Question

Quizplus · Accepted Answer

Space telescopes looking for transiting planets need to be able to detect small drops in brightness, which are usually caused by the planet passing in front of its host star. These drops need to be at least 0.01% in order to be detectable with current technology. Therefore, choice C is the most accurate as it is the smallest value listed. Space telescopes looking for transiting planets look for small drops in brightness, often caused by a planet passing in front of its star. These drops are typically very small, on the order of 1% or less. Therefore, the correct answer is B) 1%, or option C.

Space Telescopes Looking for Transiting Planets Look for Small Drops