We have studied asteroids by all of the following methods EXCEPT ONE. Which is the EXCEPTION?
A)sending radar pulses to reflect off the surface and analyzing the result
B)watching the variations in the sunlight reflecting off the asteroids
C)sending a spacecraft to orbit an asteroid
D)landing a robotic rover to survey an asteroid

Question

Quizplus · Accepted Answer

While we have sent spacecraft to orbit and land on asteroids, we have not yet sent a robotic rover to survey an asteroid.

We Have Studied Asteroids by All of the Following Methods