Dying SpaceX rocket creates eerie 'dashed' line in new photos. What's going on? 

 New images show a glowing "dashed" line in the night sky above Arizona after part of a SpaceX Falcon 9 rocket fell back to Earth following a double-header launch. 

https://cdn.mos.cms.futurecdn.net/4QAjDZE4dLTqUwkhPVu3ZY.jpg

https://www.space.com/spacex-rocket-creates-dashed-line-new-photos