The cosmic curtain is about to rise on the greatest show on Earth: a total solar eclipse that will dazzle tens of millions as it races across North America.

Day will turn into night as the moon perfectly positions itself between Earth and the sun on April 8, temporarily blocking the sunlight.

The eclipse will begin in the Pacific, cross into Mexico and then cut through Texas on a northeasterly path through 15 states before heading out over Canada and the North Atlantic.

Totality will last up to 4 minutes, 28 seconds in some spots. The last time totality crisscrossed the U.S. was in 2017, with totality lasting 2 1/2 minutes.

After April, it won’t happen again until 2045.