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Defense Global

North Sea's hidden ice age past is revealed in 3D

These deep, kilometres-wide channels, known as tunnel valleys, were cut by fast-flowing rivers that ran under Northern Europe's ancient ice sheets.Today, the landforms are all hidden by the North Sea's bottom-muds, but new survey work has traced their outline in remarkable 3D detail.Scientists say the channels should give us clues as to how modern-day ice sheets, such as Greenland, will decay.

Defense Global

International Space Station: Smoke triggers alert on board

The incident centred on the Russian-built Zvezda module which provides living quarters, Russian media report.The ageing space station has suffered a number of failures over the years and a Russian official recently warned of outdated hardware and failing systems.These include air leaks, misfiring engines and cracks.