Its not everyday you get to chat to an Astronaut - especially one who is about to head up on a six-month mission to the ISS.

Kate Rubins is a molecular biologist who was selected by NASA back in 2009 - then during her first mission to the space station she became the first person to sequence DNA in space. I managed to interrupt her busy training schedule – she is due to launch for NASA expedition 64 in a few weeks – to talk space microbiomes, growing cells in microgravity and, well, lots of other fan-boy space questions!