Sunita Williams and Butch, who last year set off for an eight-day Starliner test flight that swelled into a nine-month stay in space, have had to readapt their muscles, sense of balance and other basics of Earth.

US President Donald Trump on Wednesday called international students “troublemakers” and suggested a 15 per cent cap should be imposed on the admission of foreign students at Harvard University and other American higher education institutions.

A video of the incident went viral, in which the minister can be seen standing with at least eight other people in the lift.