September's full moon is this weekend - and it will be a total lunar eclipse, also known as a "blood moon." Lunar eclipses typically occur twice a year thanks to the moon's tilted orbit. Here's how ...

The total lunar eclipse happens the night of March 13-14. The full Worm Moon will have a red glow, hence the name "Blood Worm Moon." No special equipment is needed to see this eclipse. Sky watchers ...