Astrologists believe the planet is to blame for bringing periods of misfortune down to Earth – and it's about to happen again on Thursday.
Mercury is expected to enter retrograde, appearing to turn the opposite direction in relation to other planets within its solar system, for the first time in 2018 ast approximately 7:19 p.m.
"Normally, the planets move west-to-east through the stars at night.
This is referred to as prograde motion," a blog post by NASA's Astrophysics Science Division (ASD) explains.
When planets go through retrograde, they just appear to be moving in an opposite direction when we look up at the sky from Earth.
From our point of view, it looks like the planet is making a giant "loop-di-loop or squiggle" in the sky, The Washington Post described in a post last spring.