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Watch astronauts play new 'Space Dart' game on the ISS (video)

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« Soft matter physics offers a simple way to identify risky tumors. Metastasizing cancer cells have elongated nuclei and are less densely packed against their neighbors, the study finds, compared to cancer cells that aren't spreading.

A new, thin-lensed telescope design could far surpass James Webb – goodbye mirrors, hello diffractive lenses »