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Observation of a lunar eclipse. Observe the Earth, the Sun, and the Moon in realistic movement. The Moon passes behind the Earth and crosses its shadow, becoming reddish ('Blood Moon' effect). Two cameras divide the view: one looks in the Moon - Sun direction to observe the eclipse behind the Moon, the other in the Sun - Moon direction to visualize the phenomenon seen from space.

View from the sun

1 h/s

Lunar eclipse seen from space

Observe the total lunar eclipse of March 3, 2026

What is a lunar eclipse?

A lunar eclipse occurs when the Moon passes behind the Earth and finds itself in its shadow.
During a total lunar eclipse, light from the Sun passes through the Earth's atmosphere and is refracted towards the Moon.
This luminous flux on the moon takes a reddish color whose intensity is variable according to the atmospheric weather conditions of the Earth.

There are at least 2 lunar eclipses per year, for a lunar eclipse to occur, the Moon must be full and it must be close to one of the two points of intersection that its orbit makes with the ecliptic.