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 Cosmos Online NASA looks to new frontiersHalf a century after NASA was created at the height of the Cold War – when the U.S. sought to prove its superiority by winning the Moon race – the agency faces new challenges.  Lunar love affairThere are good scientific reasons for returning people to the Moon, and for Australia to participate much more fully in international space programs.  Fifty years of NASAIn 50 years, NASA has earned itself an unparalleled reputation as an engineering, technological and scientific pioneer by pushing science to the limit.  The final frontierIn the 1960s the space race created a fascination with science and great technological advances. To find alien life we need to take back up that mantle, says astrophysicist Stephen Hawking, and send people further into space.  Verging on absolute zeroWe've gone to space, split the atom, and created devices small enough to travel through our blood. But it seems that in science, as in nature, there are some places we still can't reach.  The technology of athletics tracksThough the high-tech swimsuits being used in the 2008 Beijing Olympics are getting most of the press, research shows that applying advanced technology to running tracks might help break records too.  China's Olympian efforts to tackle pollutionAs the 2008 Beijing Olympic Games get underway, an expensive environmental experiment is taking place, providing a golden opportunity for pollution science.  Solar sailingSolar sails would allow a spacecraft to be propelled by the gentle pressure of light itself. It sounds like a fantastical concept, but with two missions imminently due to practically test the idea, it's edging towards reality.  The profit from obesityTo stem the spread of obesity, we must study the complex web of commercial interests and marketing strategies driving it.  Mapping the evolution of the cosmosA new telescope in the Australian outback, promises to answer big questions about the history and fate of the cosmos. By focusing on distant objects, it will peer back in time, almost to the Big Bang 13.7 billion years ago.  Who’s afraid of the big bad toad?A new arsenal of weapons, such as toad-specific parasites and pheromones is giving a glimmer of hope in the toad wars.  Bird flu: A dead duck?Health officials warned of a major bird flu pandemic ripping across the world as early as 2004. But it still hasn't happened. Was it scaremongering? Statisticians pick over the evidence.  The many worlds of Arthur C. ClarkeHe was many things - an engineer, a thinker, a novelist. But Arthur C. Clarke was most of all a visionary who had an incalculable influence on space travel, space exploration, and astrobiology.  Enzymes made to orderIn a world first, scientists have managed to synthesise entirely new functional enzymes that could pave the way to reactions not seen in the natural world. 
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