A lunar eclipse occurs when the Earth passes between the Moon and the Sun, and the Earth's shadow obscures the moon or a portion of it. A solar eclipse occurs when the Moon passes between the Earth and the Sun, blocking all or a portion of the Sun.
I think (not too sure) that a Solar Eclipse is when a planet is in front of the Sun, covering it for us. In a Lunar Eclipse, that is when the Moon is in front of the Sun. Sorry if I got that wrong! That's just what I think the difference is.
