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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Sleet and snow overnight in some parts of the Anglia region leading to some settled snow. Wintry showers on Saturday.
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Cloudy skies with a southeasterly breeze picking up and rain reaching western counties by dusk, perhaps snow in places later.