A super blue blood moon is simply three lunar eclipses occurring at the same time. We have had the most recent Super Blue Blood Moon in 218 which is 152 years after the one before it. The three s of eclipses are a Total Lunar Eclipse Penumbral Lunar Eclipse and a Partial Lunar Eclipse. First off let begin with a Total Eclipse of the moon. A Total Eclipse is when the Umbra (the inner part of the Earth shadow) falls on the moon. During this eclipse the moon may appear a red. Since the moon does not actually produce sunlight the part of the moon that is clearly visible to us is produced by sunlight reflecting off of the Earth. When the Earth travels in between the Sun and the moon which only happens during Total Lunar Eclipses it cuts off moon light supply which gives the moon a red tone. Next there is a Partial Lunar Eclipse. A Partial lunar Eclipse is extremely similar to the Total Lunar Eclipse. While the Earth still moves between the Sun and the moon the Earth only covers a portion of the moon as oppose to covering itpletely. This creates a shadow on the surface of the moon that moderately covers the moon surface. Lastly the Penumbral Lunar Eclipse. A Penumbral Eclipse is when the moon passes through the Earth penumbral shadow. When the Earth and the Sun pass around the moon similar to all of the other eclipses the Earth blocks off light in the moon direction (which is what a Lunar Eclipse is). In a Penumbral Eclipse a fraction of the moon will be covered by the shadow cast by Earth however the shadow is to a much more minimal degree. Super (It is at the point when it is closest to Earth so it appears larger) Blue (Second Full Moon of the Month) Blood (Referring to the fact that it is Blood Red) Moon (It is a moon)