Why does the moon appear larger near the horizon than it does higher up in the sky?

The Moon illusion is an optical illusion in which the Moon appears larger near the horizon than it does higher up in the sky. It has been known since ancient times - Aristotle, da Vinci, Gauss and many others wrote about it. The full explanation of this illusion is still debated pic.twitter.com/eEr6u4qkqc

— Fermat's Library (@fermatslibrary) January 3, 2019

Will we have another good view of the moon tonight?

It looks like it.