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Physical sciences/Physics/Mechanics/Mechanical properties/Surface structure

Over Texas Oilfields, Satellites Track Ground Changes Connected to Quakes
Andrew Fountain examines the inner workings of glaciers
<em>Science</em>: Philae Probe Results Shed Light on the Nature of Comets
High-Tech Art Restoration Casts New Light on Master Works
New techniques reveal aging paintings in their original glory and sidestep some of the ethical issues posed by other restoration methods.
Science: Pinpointing the Nature of Filaments in Sunspots

For more than a century, researchers have been puzzled by the nature of the filaments known as the penumbra in sunspots. Understanding the structure of the penumbra, which surrounds a sunspot’s dark core, may help scientists explain the energy flow below the surface of sunspots. The research appears in the 10 June issue of the journal Science.