Size matters: Bitter Bezos takes swipe at Musk over SpaceX rocket landing

Twitter spat between space-exploring technology billionaires continues as Falcon 9 rocket finally lands vertically, dwarfing Blue Origin's New Shepard

Amazon's founder and owner of space privateer firm Blue Origin, Jeff Bezos, decided that Elon Musk's big moment - vertically landing the 48m SpaceX Falcon 9 rocket after delivering satellites into orbit - was too good a moment to pass up the opportunity for some backhanded compliments on Twitter.

After an ecstatic Musk took to Twitter to boast about going "there and back again", Bezos threw shade.