Yesterday, Thursday 30th March 2017 at 22:27GMT Space X launched a Falcon 9 rocket. This rocket had previously launched an orbital payload and successfully landed. Following the successful orbital insertion of a geostationary payload yesterday's rocket then successfully completed a boostback burn and landed on an autonomous drone ship in the Atlantic ocean.

Let's just take a moment to understand what happened, because it's unbelievable.

Space X launched and landed a rocket in one mission, then used it again in a second mission to launch a payload - then relanded the rocket again.

Let's let that sink in...