Quentin Cooper presents his weekly digest of science in and behind the headlines. As the UNESCO Women in Science Awards are announced, Material World asks why so few top scientists are women. Quentin wonders why women succeed in medicine, veterinary and life sciences, but far fewer reach the highest level in other areas. Also in the programme: a meteorite containing ammonia supports the theory that life on Earth came from outer space. And we answer a listener's question about black squirrels that are spreading across East Anglia.
The producer is Ania Lichtarowicz.