Main content
What is a lunar eclipse?
A lunar eclipse, also known as a blood moon because of its red glow, takes place around twice a year. But this one will last longer than any in the 21st Century. How do lunar eclipses take place and why don't they happen more often?
Photo: A 'blood moon' with a reddish glow (Credit: Â鶹ÊÓƵAV)
Duration:
This clip is from
More clips from Science In Action
-
![]()
Libanoculex Intermedius—Can carbon capture live up to its hype?
Duration: 00:52
-
![]()
How 'viral sex' in bats can create new hybrid Sars viruses
Duration: 06:05
-
![]()
HIV: The dangers of hidden viruses - and how to find them
Duration: 05:23
