Westmont College is doing a viewing of the rare lunar eclipse at its observatory overnight. Some of the professors including

During a total lunar eclipse, Earth’s shadow falls directly on the moon. Our atmosphere scatters blue light but lets red light pass through, giving the moon its distinctive blood-red color. It’s a natural light show that happens only when the sun, Earth, and moon line up perfectly.

Full eclipse — also known as "totality," where the moon is covered by the Earth's shadow — will occur a little over two hours, later, at 3:04 a.m., with the event concluding with moonset at 6:18 on Tuesday morning.

Tonight, the sky may put on one of its rarest shows: a total lunar eclipse blood moon and possible Selenelion.