News
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PhysicsNanobots walk ‘n’ roll
A molecule that waddles on stubby feet and another that drives on ball-like wheels demonstrate scientists' increasing control over the usually haphazard motion of molecules on surfaces.
By Peter Weiss -
PaleontologySome plesiosaurs went for clams
The fossils of plesiosaurs recently unearthed in Australia suggest that the long-necked, aquatic reptiles had a more varied diet than scientists had previously suspected.
By Sid Perkins -
Materials ScienceBrainy bandages
Researchers have taken a step toward smart bandages that would indicate the presence of an infection in a wound.
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Planetary ScienceMining the moon
New ultraviolet images of the moon help identify the presence of ilmenite, a titanium oxide whose elemental constituents may be a valuable resource for sustaining humans as they explore the lunar surface.