Scientists in Stevenage are celebrating the successful launch of the most powerful space telescope ever built.
Gaia will travel four times the distance of the moon to map the precise positions and distances of a billion stars.
The European Space Agency's five year mission will help scientists understand how the Milky Way galaxy is built up.
Much of the work on the satellite was carried out at Astrium in Stevenage.
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Very cold with snow showers and significant wind chill. Temperatures dropping to -3 deg C (27 F)
Tributes have been paid to a 25-year-old man from Essex who was found dead in a river in "unexplained" circumstances.
Feeling very cold and mostly sunny today with some snow showers overnight. Top temperatures reaching only 2 deg C (36 deg F)