Question

During what phase of the moon can a lunar eclipse occur?

Answer 1

"Full Moon.

That's when the Moon is directly across from the sun, allowing the moon sun and earth to be in a straight line causing the eclipse (with the earth in the middle of course). Partial and penumbral lunar eclipses are when the Moon is ALMOST, but not quite, exactly lined up with the Sun and the Earth."
http://www.answers.com/Q/During_which_moon_phase_can_a_lunar_eclipse_occur

"A lunar eclipse is when the earth blocks the sunlight from the moon.
With the sun behind us looking at the moon it is called a Full Moon.
A Solar eclipse is when the moon blocks the sunlight from earth.
When the moon is in this phase we can not see it. That is called a New Moon."
https://answers.yahoo.com/question/index?qid=20090507063359AAzrcFU

"An eclipse of the Moon (or lunar eclipse) can only occur at Full Moon, and only if the Moon passes through some portion of Earth's shadow."
http://www.mreclipse.com/Special/LEprimer.html

Answer 2

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