Archive for January 20th, 2017:

Galileo satellites experiencing multiple clock failures

Image copyright ESA Image caption Artwork: The European Commission is about to place an order for more Galileo spacecraft The onboard atomic clocks that drive the satellite-navigation signals on Europe’s Galileo network have been failing at an alarming rate. Across the 18 satellites now in orbit, nine clocks have stopped operating. Three are traditional rubidium

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Robotic sleeve ‘hugs’ failing hearts

Image copyright Ellen Roche Scientists have developed a robotic sleeve that can help hearts pump when they are failing. The sleeve – made of material that mimics heart muscle – hugs the outside of the heart and squeezes it, mimicking the action of cardiac muscle. The early study, published in Science Translational Medicine, shows the

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Ants use Sun and memories to navigate

Image copyright Hugh Pastoll Image caption The brain of an ant is the size of a pinhead Ants are even more impressive at navigating than we thought. Scientists say they can follow a compass route, regardless of the direction in which they are facing. It is the equivalent of trying to find your way home

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© Warren Fyfe