Artist's impression of Kepler 22b http://kimmontaidearvioita.blogspot.com/p/fictional-swimming-trip-to-exoplanets.html Kimmo Huosionmaa Every exoplanet, what we know is very far away, and that's the reason, why all trips to those planets are only speculations. We must create more advanced technology to make that kind of trip to exoplanets like Kepler 22b, where seems to be the giant ocean. That kind of exoplanets are very fascinating and in many imaginational stories, people would swim in those giant oceans, what are covering all planet. Oceans of those water-planets are very deep, and if the estimated depth of the oceans is 100 kilometers, the swimmer would see the darkness under the body. There could also be water-planets, what have islands and shoal ocean, what might be only 20 meters deep, but this is only the speculation. Nowadays scientists have found only the exoplanets, what would have very deep oceans or another way we might say, that water layer on the su...