How does the word ‘orbit’ look to you? Do you read it as a verb, as ‘to travel round (esp. a celestial object) in an orbit’ (Oxford English Dictionary)? Or do you see the noun: ‘the bony recess of the vertebrate skull that contains the eye and its associated structures; the eye socket’ (OED)? Is it possible to see them both at once, immense and tiny, human and planetary? Viewing the Earth from space, NASA physicist and astronaut, Ron McNair, thought the Earth looked like a ‘tear-drop of green’ (Newsweek Magazine, 10 February 1986); in orbit and fallen from orbit, his perspective makes us wonder, how might orbit, how might the word itself, move us to tears?