Can humans fly just like birds do? What's on the other side of a black hole? Today there are several pressing mysteries that physics still needs to solve. Let's get to know some of the most exciting physic's puzzles...

Around 1500 C.E. Leonardo da Vinci constructed several contraptions made of wood in which he hoped humans could fly. Did they work out? And how can astronomers find out what's going on on the other side of a black hole?

Learn more about your ad choices. Visit megaphone.fm/adchoices