Why don’t eclipses of the Moon occur every month?

The white glow that we see from the Moon is actually sunlight being reflected back to us from the Moon’s surface. Incredibly, only 3-12 percent of sunlight is reflected back to us from our orbiting natural satellite. The Moon orbits the Earth once every 27 days. This is slightly different to the 29 days that … Continue reading “Why don’t eclipses of the Moon occur every month?”

How rare is the Blue Supermoon eclipse?

The total lunar eclipse on 31 January, 2018 is considered quite rare. Why is this you may ask? Total lunar eclipses alone are not all that rare. A total lunar eclipse occurs on the Earth roughly once or twice a year on average. When they do occur, half of the globe can see it.  The … Continue reading “How rare is the Blue Supermoon eclipse?”