A diagram illustrating the difference between a full moon and a lunar eclipse, and the difference between a new moon and a solar eclipse. This is caused by the 5° incline of the moon's orbital plane around earth, meaning that an eclipse can only happen when the moon is nearly in line with the nodal line.
<a href="//commons.wikimedia.org/wiki/User:Lilbitmessy" title="User:Lilbitmessy">Nela (nyabla.net)</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>