A lunar eclipse occurs when the Moon passes through Earth's shadow. A lunar eclipse can only occur during a

Select one:

a. full moon.

b. new moon.

c. first quarter moon.

d. last quarter moon.

A lunar eclipse can only happen during a full moon. a lunar eclipse happens when the moon travels into earth's shadow and the earth is between the moon and sun. because of that, you can only see an eclipse during a full moon because of how the shadow is.