article_snippet.sent: A total lunar eclipse occurs when the moon is completely in Earth.
article_snippet.sent: The eclipse is the third in a series of four blood moons, with the final one expected on September 28.
article_snippet.sent: A lunar eclipse occurs when the 'blood moon' passes through the edge of the earth's shadow the earth's shadow .
article_snippet.sent: A lunar eclipse occurs when the 'blood moon' passes in the shadow of Earth.
article_snippet.sent: If it skirts the shadow, known as a partial or penumbral eclipse, the effect is less dramatic.
highlights_snippet.sent: A lunar eclipse occurs when the moon passes in the shadow of Earth .