Editor’s Note: For complete coverage of the Eclipse of the Century go to cnn.com/eclipse. Watch live, in virtual reality, as the eclipse moves coast to coast Monday.

Story highlights

Almost two-thirds of the US population is in driving distance of "totality"

"This will be like Woodstock 200 times over"

A partial eclipse vs. a total eclipse: "like being on a first date versus being on your wedding night"

CNN  — 

On Monday, the sun will disappear – for a short time – across America.

For a brief moment, day will turn to night. Animals big and small will go into their nighttime routines. Stars and planets will be visible, and streetlights will turn on in the middle of the day.

Here are some of the things you should know about the total solar eclipse happening August 21.

Don’t miss it! This is rare, says NASA

“The hair on the back of your neck is going to stand up, and you are going to feel different things as the eclipse reaches totality. It’s been described as peaceful, spirit