Animal research; Astronaut selection; Show us your instrument

This week saw the publication of the annual government statistics on scientific research on animals. Overall, it again shows an increase, but does that tell the whole story? Wendy Jarrett of the organisation Understanding Animal Research shares her thoughts.We hear from amateur and professional would-be astronauts about their training regime and selection process from Major Tim Peake, the UK’s next astronaut, to science broadcaster, Sue Nelson.Plus, the first in our new series ‘Show Us Your Instrument’. Material scientist Mark Miodownik introduces the wonders of the Transmission Electron Microscope, with music composed by the New Radiophonic Workshop.