SpaceX made it !
Falcon9 rocket first stage back and land safe after a launch .
This is the 1st successful land of a rocket and that will bring a revolution to rocket and , specially , rocket market.
There is a huge cost to build a rocket , rocket structure, tanks and motors. After a launch, usually the first stage is lost as it can not be used because during reenty it is damaged or can not be used.
During Space Shuttle launches, the Boosters were recaptured , but those were solid rockets, that means, use solid propelent.
After several tests and attempts , SpaceX team achieve this special moment .
The main achievement of SpaceX and it is technology is exactly the knowledge and capability to use the first stage and then , return the 1st stage back, landing in safe.
So, I think that this is a very important mark in the history. An amazing moment for the Aerospace Engineering.