necessity of sleep

It’s 2018. Here Are Six Scientific Mysteries We Still Haven’t Solved.

It’s 2018. Here Are Six Scientific Mysteries We Still Haven’t Solved.

Humans have made a staggering amount of scientific and technological progress over the past century. We’ve created technology that has transformed our society; scientific advances have helped us answer fundamental questions about who we are and the world that we inhabit. And, yet, mysteries persist.