Štart raketoplánu Challlneger STS-51-L. V červenom krúžku je oblak spalín z netesnosti motora SRB (Solid Rocket Booster). I upgraded the picture with red circle which marks leaking smoke from the right-hand SRB.
NASA
Taken on 28 January 1986
<a rel="nofollow" class="external autonumber" href="http://science.ksc.nasa.gov/shuttle/missions/51-l/images/86HC125.GIF">[1]</a>