IF the video stays put as it keep going away for some reason:
The IRIS spacecraft was sucessfully launched and is in its “proper orbit”. The Pegasus XL rocket is launched from a plane and (for me) is pretty spectacular.
IRIS is a NASA Small Explorer Mission to observe how solar material moves, gathers energy and heats up as it travels through a little-understood region in the sun’s lower atmosphere. This interface region between the sun’s photosphere and corona powers its dynamic million-degree atmosphere and drives the solar wind.