A Lunar Eclipse is when the Earth gets between the Moon and the Sun. During this time, the Earth's shadow blocks the Sun's light from getting to the Moon.
A Lunar Eclipse occurs more because the Earth is bigger than the Moon. Also, there is 4 Lunar Eclipses in 2020 and 2 Solar Eclipse in 2020.
Solar Eclipse happens when the Moon gets between the Earth and the Sun. The light from the Sun hits the Moon instead of the Earth.