That's incredible, I had no idea! Astonished face with wide open mouth and eyes: overwhelmed with surprise, completely shocked or sheer incredulity. Can hardly believe what just happened!
The astonished face emoji was introduced in 2010 and released as part of the Unicode 11.0 standard. This emoji can be found under the smileys and emotions
category. Because the astonished face emoji has been around for quite some time, it should display correctly in the majority of operating systems.