'Heavy' history: ULA launches final Delta rocket after 64 years (video, photos) 

 The liftoff of the last-ever Delta rocket today (April 9) brought with it a change in the way the U.S. sends satellites, interplanetary probes and spacecraft into Earth orbit. 

https://cdn.mos.cms.futurecdn.net/wfP6di8bxwGR9RepzeNSET.jpg

https://www.space.com/final-delta-4-heavy-rocket-launch-nrol-70