The most successful comet discoverer in history, Jean-Louis Pons, was born on this day in 1761, making today his 251st birthday. As a young man Pons started his astronomical career in the unassuming role of concierge at the observatory in Marseilles. He discovered his first comet in 1801 and went on to discover 36 more.
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Explore space shuttles, the Zero Gravity Space Lab, satellites and space craft.
The Strasburg Clock model has been one of the most popular exhibits at Powerhouse Museum for over 100 years.
Locomotive No. 1 hauled New South Wales' first train and is on permanent display at Powerhouse Museum.