ESA title
Science & Exploration


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ESA / Science & Exploration / Space Science / Rosetta

APXS (Alpha X-ray Spectrometer) is lowered to within 4 cm of the ground, it detects alpha particles and X-rays, which provide information on the elemental composition of the comet's surface.

Principal Investigator: Göstar Klingelhöfer, Johannes Gutenberg-Universität, Mainz, Germany

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