Choose the verbs in the correct tense to complete the paragraph.
the kepler mission's goal is to explore planetary systems. to do so, they must
a specially designed
instrument called the kepler instrument. the instrument a specially designed telescope called a
photometer or light meter. it
a large field of view: 105 square degrees, which is about the area of a han
held at arm's length. results from the keplar mission's study
scientists to understand earth's place in
the solar system