Up until recently, that was the Solar System -- four Earth-like planets with small radius, smaller than about two times the size of the Earth -- and that was of course Mercury, Venus, Mars, and of course the Earth, and then the two big, giant planets.
Até bem pouco tempo, esse era o Sistema Solar -- quatro planetas similares à Terra com pequeno diâmetro, menores do que duas vezes o tamanho da Terra. E que eram Mercúrio, Vênus, Marte, e a Terra, claro, e depois os dois grandes planetas, gigantes.