Great milestones have been achieved in space exploration in the past. Today, we are more aware than ever of our galactic neighborhood. We have sent men to the moon, launched space probes to distant planets and, with the help of modern space telescopes, peered countless light years into the universe. Despite all these achievements, however, a great unknown remains: What’s outside the observable universe? The most diverse theories abound. Today, we want to explore with you the question of how scientists try to explain what lies hidden in the universe beyond our earthly eye. We hope you enjoy this exciting topic! Subscribe for more! ► https://bit.ly/2Q64mGd Credit: NASA, ESA, ESO, SpaceX, Wikipedia, Shutterstock, ... #TheSimplySpaceEN