The enormous challenge of building a probe capable of traveling over 1 billion kilometers to reach Saturn's largest moon, Titan.
- Huygens probe was designed by the European Space Agency at a cost of £400 million.
- NASA's Cassini satellite carried Huygens 1.3 billion km, to explore Saturn's largest moon, Titan.
- Thick clouds surround Titan, so its surface could only be guessed at.
- A penetrometer on the bottom of the Huygens probe indicated the exact nature of Titan's surface.
Landing on a moon over 1 billion kilometers away, on a surface you can't see, isn't easy.
But it was a challenge taken on by the European Space Agency.
They began building Huygens probe, which would hitch a ride to Saturn's moon Titan on NASA's Cassini satellite.
The craft, costing £400 million ...
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