These unsettling cases will challenge everything you think you know about reality.

From the water that covers most of it to the moon that orbits it, here are some bizarre things about our home planet that science still doesn't completely understand.

Add Yahoo as a preferred source to see more of our stories on Google. The universe continually reminds us that our understanding of reality remains deeply incomplete, despite the billions invested in ...

(via Sabine Hossenfelder) In today’s video, I have a brief rundown of my 10 favorite physics paradoxes and big problems. If you have trouble sleeping at night, this will give you something to think ...