Video report by ITV News Correspondent David Wood
British astronaut Tim Peake has described his body adjusting to being back on Earth as like "the world's worst hangover".
Major Peake said he felt "pretty terrible" and was suffering with vertigo and dizziness, but was beginning to feel better as time passed.
He added that sleeping back on Earth was much easier but admitted he missed the view from the International Space Station.
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It is the first such incident between the two countries.
The Met Office said there is around a 30% chance the all-time weather record of 38.5C could be broken.
Producers said they had stopped production and were focusing on the incident.