<a href="https://en.wikipedia.org/wiki/Space_Shuttle_Challenger" class="extiw" title="en:Space Shuttle Challenger">Challenger's</a> right SRB exits the vapor cloud roughly 75.8 seconds after launch. The anomalous plume that caused the disaster is clearly visible.
NASA
Taken on 28 January 1986
NASA camera, screenshot from <a href="//commons.wikimedia.org/wiki/File:Challenger_(STS-51-L)_Tracking_Camera.webm" title="File:Challenger (STS-51-L) Tracking Camera.webm">File:Challenger (STS-51-L) Tracking Camera.webm</a>