If you haven't heard, there's a big solar eclipse tomorrow. People from Oregon to Texas will get the full thing. Everyone else in the U.S. will get a partial eclipse. (Here's a map, and a list of when to watch in all 50 states.) The entire event will last two to three hours, but the full eclipse will be a lot shorter. In the best spots, just four to five minutes tops.
The full shadow will pass over the coast of Oregon around 9:15 AM Pacific . . . move southeast through Nevada, Utah, Arizona, New Mexico, and Texas . . . and then pass into the Gulf of Mexico around noon Central. (Here's a video.)
It's an "annular" eclipse. That means the Moon is so far away right now, it's slightly smaller than the sun. It's why it's also called a "Ring of Fire" eclipse. No matter where you are, don't look directly at it. It can damage your eyes.