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The Weather on Mars
Mars Climate Orbiter was launched to measure the Martian climate and atmosphere
Mars Climate Orbiter was launched to measure the Martian climate and atmosphere - discussion with Fred Taylor of Oxford University.
How to view the asteroids of our solar system's Asteroid Belt - how many are there and what do they look like with Alan Fitzsimmons of Queen's University, Belfast.
Plus what was happening among the stars and planets in September 1999.
This is a programme from the 大象传媒 World Service Archive and was originally broadcast in 1999.
