Question

The Kepler spacecraft was designed to investigate humanity's last unexplored frontier: the far reaches of space. The NASA space telescope looks deep into the Milky Way galaxy for signs of habitable planets where humans could potentially thrive. In the thousands of planets, it has identified, three are in livable orbits similar to Earth. The planet most similar to Earth is Kepler 186f, known as "Earth's cousin." Over 490 light years away, all that NASA knows is that Kepler 186f's size and distance from its star are comparable to Earth. As technology advances, hopefully we will learn more about Kepler 186f's ability to nurture life. Perhaps someday our descendants will cross the insurmountable distance to explore the surface of Earth's cousin, maybe even contact with life on another world.

Which of the following best describes the main idea of the second paragraph?
a. Scientists know many facts about the planet Kepler-186f
b. Conditions on Kepler-186f will allow humans to thrive
c. From what scientists have learned so far, Kepler 186f is the planet most similar to Earth
d. The Kepler space telescope's main mission is to explore the Milky Way

Answer 1

The main point of the second paragraph is that Kepler 186f is the planet most similar to Earth, offering hope for potential habitability.

Step-by-step explanation:

The main idea of the second paragraph is that Kepler 186f is the planet that is most similar to Earth based on current observations, particularly in terms of its size and position in the habitable zone, relative to its star. This similarity raises interest in its potential to support life.

However, there's much to discover about its characteristics, and whether it can nurture life remains a question for future technological advancements and explorations.

The main idea of the second paragraph is that from what scientists have learned so far, Kepler 186f is the planet most similar to Earth.

The paragraph mentions that Kepler 186f's size and distance from its star are comparable to Earth, making it a potential candidate for supporting life. While there are thousands of planets identified by the Kepler spacecraft, Kepler 186f is the most similar to Earth.