Let’s make this simple. No, Mars will not appear as big as the moon in the night sky. This just will not happen.
This is a hoax that’s been circulating social media for over a decade. It may have started with simple basic astronomy like the path of Mars does bring it closer to Earth at certain times of the year, and Mars can appear next to the moon on a cycle. These these facts have been taken far out of context, and in most cases purposely blurred, all in the attempt to fool people.
Here’s what NASA says about that the hoax.
Get your astronomy from a credible source!