Data from the NASA/ESA/ASI Cassini-Huygens mission are providing convincing evidence that Saturn’s moon Phoebe was formed elsewhere in the Solar System, and was only later caught by the planet’s gravitational pull.
One way to unlock Phoebe’s secrets is using Cassini’s Visible and Infrared Mapping Spectrometer (VIMS), developed by a team of US (JPL), French and Italian (ASI) scientists and engineers. The science team is made by a large international group of US, Italian, French and German scientists led by the University of Arizona.
This instrument identifies the chemical compositions of the surfaces, atmospheres and rings of Saturn and its moons by measuring colours of visible light and infrared energy emitted or reflected (spectra).
Jean-Pierre Lebreton | alfa
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