text: Another reason the exploration of Venus is essential is that Venus used to have the same geological features that earth has now. We know that Venus was once covered by ocean just like Earth. The surface also was evidence of rocky sediments. This can help infer that there used to be valleys, mountains, and even craters. The earth inhabits all of these characteristics as well. What happend to the ones in Venus? The answer is unknown that is why it is crucial to explore Venus so that Earth can avoid the same misfortune as its twin planet.