Rambo Tribble (1273454) writes "Patterns appearing in images taken by the ESA's Cryosat program at first baffled agency scientists. Fearing malfunction, they poured over the data. It turns out that patterns in ice features known as sastrugi were affecting the reflection of the polarized radar used by the satellite. The sastrugi have been formed by Antarctica's prevailing katabatic winds. The BBC reports."
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