Read the sentences. Astronomers have discovered a planet nearly the same size as the earth. This newly found world is called Kepler-1649c. It orbits in its star's habitable zone, where liquid water could exist on its surface, a new study has revealed. The presence of liquid water also indicates that the planet could support life.

Which sentence could be added to the paragraph while maintaining a consistent tone?

I think we should look for more planets like this one.

Astronomers are really smart people.

The solar system is a pretty fabulous place.

Human beings could possibly live on this planet.