A study looked to answer that.

“Our technical officers called upon to perform this unhappy duty will never forget the tragedy of those days.”

After crawling into the tunnel for the first time, Heinrich Frank found giant scratch marks all over the…

The so-called “expanding hole” illusion is new to science.

Duh, there isn’t a single real image of the whole Milky Way.

It always pays to have a second look.

No eyes? No worries.

Sit back, relax, and let’s Break It Down in episode 74…