August 6, 2014 | David

Space is mind-bogglingly big. I'm amazed to hear that, today, the European Space Agency's Rosetta probe is entering orbit around a comet hurtling through space 400 million kilometres from Earth.

Rosetta was launched ten years ago and has travelled 6 billion kilometres to catch up with the fast-moving comet. Among the many scientific tests planned, the mission will search for chemical building blocks of life on the comet's surface. I wonder what it'll find?

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Rosetta Comet

This is the latest picture of comet 67P/Churyumov-Gerasimenko, taken by the Rosetta probe from 234 km away.

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Image: ESA/Rosetta/NAVCAM

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