Tetrad lunar eclipse

A Tetrad lunar eclipse refers to a series of four consecutive total lunar eclipses, spaced roughly six months apart, occurring over a period of about two years. During a lunar eclipse, the Earth moves between the Sun and the Moon, causing Earth's shadow to fall on the Moon. A Tetrad is notable because such sets are relatively rare in modern times. Each eclipse appears as the Moon turns a reddish hue, due to sunlight filtering through Earth's atmosphere. This pattern is primarily a coincidence of orbital alignments and occurs without any impact on the Moon or Earth itself.