Responding to a video of "another safe landing" by Jeff Bezos' Blue Origin, world's richest person and SpaceX CEO Elon Musk tweeted "Congrats". He added that it was "cool" to send 90-year-old William Shatner, who played Captain Kirk on 'Star Trek', to space. Musk also commented "Godspeed Captain" on a NASA tweet wishing Shatner luck ahead of the space trip.