High Resolution Coronal Imager
The High Resolution Coronal Imager (Hi-C) is a sub-orbital telescope designed to take high-resolution images of the Sun's corona. As of 2020 it has been launched three times, but only the first and the third launches, on July 11, 2012, and May 29, 2018, resulted in a successful mission.
Source: Wikipedia — High Resolution Coronal Imager (CC BY-SA 4.0)