Sellers enthused: “While it’s up there, it will be experiencing no gravity."
Er, yes it will. Pretty hard to avoid gravity, especially when you're flying not far above a large body like the Earth.
I daresay Sellers is well aware there is a difference between 'micro-gravity' (which is obviously what he, the ISS and this alleged piece of Newton tree will be experiencing) and 'no' gravity, and I would have thought there is little harm from saying it as it is rather than making up physics.
Dumbed-down just for Britain, perhaps?