I am highly committed to the public understanding of science, and give a large number of public talks on astronomy, planetary science, astrobiology and space exploration.
I regard inspiring schoolchildren with the wonders of the universe as particularly important, both as an integral part of science education and because I think important social and political consequences follow from it. For this reason I am a member of the The Association for Astronomy Education, under the auspices of which I have compiled a list of professional astronomers who are prepared to give school talks. I have outlined the rationale behind this initiative in 'Wanderers in space: the case for peripatetic astronomy teachers' (1991) Astronomy Now 5(10): 54.
I was President of the Society for Popular Astronomy for 2006-8.