First Falcon 9 First Stage Reuse

I was reading space.com this evening and was intrigued by their coverage of the successful takeoff, deployment, and recovery of a SpaceX Falcon 9 first stage. SpaceX has done that before, but what makes today's story exciting is that this is the first time a used Falcon 9 first stage has flown. This same first stage launched a Dragon cargo capsule toward ISS back in April 2016; today it flew again and launched a satellite. Congratulations to the SpaceX team on this historic accomplishment, and kudos to space.com for the nice coverage.