Whereever you are tonight, help celebrate Earth Hour by switching off lights this evening at 20:30 for 60 minutes, admiring the stars in the night sky.
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How to save the world from an asteroid impact
Astronomers have found thousands of asteroids that pass near Earth’s orbit, and a few of these are on trajectories that give them a small chance of hitting Earth. The most worrying is a 270-metre-wide asteroid named Apophis, which has a 1 in 45,000 chance of hitting us in 2036.
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SSTL-led team investigates GNSS signals for remote sensing
Surrey Satellite Technology Limited (SSTL) will lead a British project
to exploit signals from GPS and GNSS navigation satellites that are
reflected from the Earth for remote sensing purposes. The project will
investigate a prototype instrument capable of measuring the roughness of
the sea and soil moisture content, providing data for atmospheric
science and for operational ocean and weather forecasting.
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