Question

1. what will telescopes on earth be observing to determine the success of the dart mission?

a. the new orbit of dimorphos around didymos.
b. the amount of debris scattered by the impact.
c. the chemical composition of dimorphos.
d. the internal structure of didymos.

Explanation:

The DART (Double Asteroid Redirection Test) mission aimed to test planetary defense by altering the orbit of Dimorphos (a moonlet) around Didymos. To determine success, telescopes observe the new orbit of Dimorphos around Didymos. Option B's debris amount isn't the main success metric, C's chemical composition isn't related to the mission's goal, and D's internal structure of Didymos isn't the focus.

Answer:

A. The new orbit of Dimorphos around Didymos.