We haven’t yet solved the mystery of dark matter, but this universe size comparison 3D animation by Global Data does show us how small Earth and our solar system really is. What really stands out is Keppler-22b, which is an exoplanet roughly twice the size of our planet, located within the habitable zone of the Sun-like star Kepler-22.
Forget the Andromeda Galaxy, visiting another habitable planet a mere 600 light-years away from Earth would be a game changer for humanity. Kepler-22b was the first known transiting planet to orbit within the habitable zone of a Sun-like star where liquid water could exist on its surface. The planet is reported to have a moderate surface temperature and an orbital period of 290-days. Unfortunately, for humans to reach this planet would mean the invention of a wormhole-capable propulsion system or some type of cryogenic hyper sleep chamber.
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