Dolphins in Space!

A few million years from now (give or take), let’s say humanity has annihilated itself and evolution proceeds in other species. Perhaps dolphins would continue to develop their intelligence and maybe even have a technological revolution of their own. Of course, there is no reason to expect that advanced dolphin intelligence would have a lot of outward similarities to human intelligence, but there would likely be some. What about the urge to explore beyond one’s own environment? I imagine that these evolved dolphins would eventually embark on discovery journeys onto land, similar to our exploration of the oceans. And then…a dolphin space program? Just try and picture what that would look like!