Hampstead Scientific Society Lecture: 'Rosetta - a cometary close encounter' Hampstead Scientific Society Lecture:ROSETTA – A COMETARY CLOSE ENCOUNTERBy Roger O’Brien, Open University and Hampstead Scientific Society After ten years cruising through the Solar System, with two asteroid encounters, one flyby of Mars and several past the Earth, Rosetta reached Comet 67P Churyumov-Gerasimenko a year ago.The comet is shaped like a rubber duck! Rosetta watches it carefully and dropped Philae to land on its surface. That surface is dramatic with chasms, cliffs, boulders, smooth flat areas and circular features that probably aren’t craters.Rosetta has poured cold water on the idea that Earth’s water came from comets.Philae lies in the dark, now, but 67P’s summer Sun may rise high enough to revive it. The event is open to members and to the general public. No booking is needed.A voluntary donation of £2 would be welcomed from visitors to contribute to running costs. Telephone number for information: 07968 078827 Email: firstname.lastname@example.orgWebsite: www.hampsteadscience.ac.uk Booking for this event has now closed.