It's set to revolutionise the way we view the Earth from space. Two special cameras, designed and built by scientists in South Oxfordshire, have blasted off to the International Space Station, ready to reveal video and images of our planet, never seen before.
Cary Johnston took a trip to the final frontier.
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Dry with sunny spells this morning and plenty of sunshine this afternoon.
A cloudy start but brightening up during the morning with sunny spells this afternoon.
Increasingly cloudy with drizzly rain tonight. A cloudy start on Monday but brightening up with plenty of sunny spells in the afternoon.