
ALT 6pm: Could humans live on Mars? Could we go there in our lifetime? Join Lucinda Offer (Royal Astronomical Society and Executive Director of the Mars Society) and guests to discuss and debate living and working on Mars, and meet the people who are trying to make this a reality. 7pm: Remote observations of Mars.

ALT Johannes Kepler, Astronomia nova … tradita commentariis de motibus stellae Martis … (1609) In this book Kepler worked out the two laws which gave the position of the planet Mars (m) both in space and in time, represented here in combination. (These two laws are represented individually on the display panel.) The path is an Archimedean ellipse ambc with known semi-axes having the distance mn constructed geometrically from the Sun (n), while area amn measures time in orbit. This theoretical structure compellingly satisfies the superb naked-eye observations of Tycho Brahe. Urania in her chariot is bringing a wreath to crown Kepler's triumph.






















