Each week new observations add to the tally of ‘hot-Jupiters’ and ‘super-Earths’ found in orbit around nearby stars. Other planetary systems appear commonplace in our Milky Way, but how closely do they resemble our own Solar System, and what are the implications for life elsewhere?

Professor Carolin Susan Crawford is a British communicator of science, astrophysicist researcher, lecturer and academic based at the Institute of Astronomy and Emmanuel College, Cambridge.

Gresham College exists for to sole purpose of disseminating knowledge to the public through free lectures.