Tim Peake will be wobbly after landing - Helen Sharman

As British astronaut Tim Peake ends his mission, Helen Sharman - who herself flew in space in 1991 - says he is likely to feel unsteady after landing.

"I was quite wobbly for a while... It took me a few paces to learn how to walk in a straight line again," she told BBC News.

Major Tim may also face physical issues with his eyesight and immune system, she added.