What happens when a curious mind builds a time machine in his backyard? Meet Mike “Mad Man” Marcum, the man who risked it all chasing time travel. This video unpacks his wild experiment, the strange ...

For decades, he hid his time-travel obsession. Now, he is challenging the assumptions that underpin our universe.

In the early 1990s, eight people tried to survive in a hermetically sealed glass structure filled with miniature forests, ...