And another successful launch and recovery – this time from Vandenburg CA (polar orbit). Back to back launch and landings.

New titanium grid fins (as opposed to the original aluminum grid fins) for better heat tolerance.

https://en.m.wikipedia.org/wiki/Autonomous_spaceport_drone_ship (ASDS)

SpaceX set for second weekend launch, new titanium grid fins to be tested

http://www.spacex.com/news/2017/06/24/iridium-2-press-kit