What is A Lunar Eclipse?
When the moon passes directly between the sun and the earth, we have a solar eclipse. When the earth passes directly between the moon and the sun, a Lunar eclipse occurs.
A lunar eclipse can occur only on the full moon nights, because only then it is on the other side of the earth from the sun. The earth casts a long shadow on the moon and we can see the lunar eclipse.
There may be no lunar eclipse in a year or there may be as many as three. Lunar eclipse can last much longer than the solar eclipse, up to 104 minutes.