Carters Observatory

In the the holidays I went to Carters Observatory in Wellington. I went to the the black holes where you throw balls onto the table and the slops pull in the balls it was interesting.I estimated about 1000 forms of intelligent life that live on planets or moons using a computer. We also learnt about how without tars we would never have lived even with volcanoes. We also made a comet with dried ice ammonia alcohol Worcester sauce and dust.