Cool: An astronomer has just been named as Australia's new Chief Scientist. Penny Sackett, who ran the rebuilding of the Mt. Stromlo observatory after devastating fires in 2003. Also cool: she said that global warming is the biggest issue we face today. Again also cool: She's a woman. I wonder what she wanted to be when she was 13? Well, now she's the chief scientific advisor to the Australian government. Cool all around.