Question

select the correct text in the passage.
which sentence best expresses the central idea of the passage?

juno reaches jupiter
adapted from nasa

after an almost five - year journey to the solar systems largest planet, nasas juno spacecraft successfully entered jupiters orbit during a 35 - minute engine burn. confirmation that the burn had completed was received on earth at 8:53 p.m. pdt, monday, july 4, 2016. junos principal goal is to understand the origin and evolution of jupiter. with its suite of nine science instruments, juno will investigate the existence of a solid planetary core. it will also map jupiters intense magnetic field, measure the amount of water and ammonia in the deep atmosphere, and observe the planets auroras. the mission also will let us take a giant step forward in our understanding of how giant planets form and the role these titans played in putting together the rest of the solar system. as our primary example of a giant planet, jupiter also can provide critical knowledge for understanding the planetary systems being discovered around other stars.

Explanation:

To determine the central idea, we analyze the passage: it starts with Juno's arrival at Jupiter, then focuses on its goal (understanding Jupiter's origin/evolution) and broader scientific impacts (giant planet formation, solar system & exoplanetary knowledge). The key sentence tying these together is about the mission's role in advancing understanding of giant planets and their place in the solar system (and beyond).

Looking at the highlighted (or key) sentence candidates, the one "The mission also will let us take a giant step forward in our understanding of how giant planets form and the role these titans played in putting together the rest of the solar system. As our primary example of a giant planet, Jupiter also can provide critical knowledge for understanding the planetary systems being discovered around other stars." encapsulates the main purpose and significance of Juno's mission, which is the central idea—connecting Jupiter study to broader planetary science.

The passage details Juno's arrival at Jupiter and its mission. The central idea is about the mission's significance in advancing knowledge of giant planet formation, their solar system role, and exoplanetary systems. The sentence emphasizing this broader impact (on giant planets, solar system, and other planetary systems) best captures the central idea.

Answer:

The mission also will let us take a giant step forward in our understanding of how giant planets form and the role these titans played in putting together the rest of the solar system. As our primary example of a giant planet, Jupiter also can provide critical knowledge for understanding the planetary systems being discovered around other stars.