地球 ちきゅう がた惑星 わくせいでしょう
chikyūgata waku seideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 地球型惑星

1. Earth-like planet, probably.; It will likely be an Earth-like planet.

Polite
Presumptive
Conjecture
Astronomy