Researchers who are currently looking into inexplicable lights and objects in the sky are calling them unexplained aerial phenomena (UAPs), not unidentified flying objects (UFOs). Learn why in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/space/aliens-ufos/uaps.htm

What Pranks Have Astronauts Pulled?
08:40

How Can Your Body Learn to Tolerate Cold?
10:58

How Did the War of 1812 Settle the American Revolution?
10:23