The next total lunar eclipse won't happen for three years, so it's a good time to look at the moon.

The eclipse starts at 3:02 a.m. According to NASA, it's located in the eastern part of the country. At 4:09 a.m., the partial eclipse begins. It seems like a bite is being taken out of the moon. At 5: 17 a.m., the moon enters totality. It will take about an hour and a half to finish.

People in several countries will be able to view the eclipse. The eclipse will be visible in Alaska and Hawaii.

It is best to be in a dark area.

There is a lunar eclipse when the sun, Earth and moon are all aligned. The moon is in the shadow of the Earth during a lunar eclipse.

A "blood moon" occurs when the moon appears red. During a lunar eclipse, Earth's atmosphere is bombarded with little sunlight that can't reach the moon. The moon looks red if the atmosphere is cloudy.

It's as if all the world's sunrises and sunsets are projected onto the moon.

According to NASA, there will be partial lunar eclipses before the next full lunar eclipse.