significant atmospheres saturn 's moon titan neptune 's moon triton tenuous atmosphere exists around mercury effects rotation rate planet axis seen atmospheric streams currents seen space features show bands eddies cloud system particularly visible jupiter saturn exoplanetology exoplanetology studies exoplanets planets existing outside solar system recently means studying exoplanets extremely limited current rate innovation research technology exoplanetology become rapidly developing subfield astronomy comparative
Natural science Space science Planetary science