One of the frontiers that we as humans are perpetually interested in is outer space. As we have only been able to explore what we presume is a fraction of what’s out there, it’s only natural to wonder what’s beyond the reach of humans and how far our technology allows us to travel.
While there are endless planets out there to explore and discover, one of the universe’s greatest mysteries comes from Earth itself.
That’s right, one of the biggest unknowns about exploration is sitting right underneath of your feet at this very moment.
What is the deepest hole that humanity has ever dug? If you’re curious about the answer, then this is the video for you!