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Tiny fragments of organic molecules, the building blocks of life, have been found in the Murchison meteorite that fell to Earth in Australia – so are we really all "children of the stars"?
Astronomers meet in Liverpool, UK, to prioritise reasearch goals and plan new and bigger telescopes to achieve them. Jeffrey Sachs on the issues that inspired his book, Common Wealth: Economics for a Crowded Planet; how Ruby the Robot is teaching languages to children; and muscles for facial expression not common to everyone.