4 essay 4 points\nwhat is a total lunar eclipse?

Answer

Answer:

A total lunar eclipse occurs when the Earth moves directly between the Sun and the Moon, causing the Earth's inner shadow (the umbra) to completely cover the Moon. This phenomenon can only happen during a full moon when the Sun, Earth, and Moon are perfectly aligned in a straight line. During totality, the Moon often appears reddish because Earth's atmosphere scatters blue light and refracts longer red wavelengths into the umbra.