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Planetary Science

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Cassini mosaic of Saturn

FOND FAREWELL  The Cassini spacecraft took this last look at the Saturn system two days before plunging into the giant planet’s atmosphere. 

Pluto's haze

HEAT SHIELD  Layers of haze in Pluto’s atmosphere, shown here in an image from the New Horizons spacecraft, could radiate heat away from the dwarf planet and cool it down.

Illustration of New Horizons' next target

NEW HORIZONS’ NEXT POSTCARD  The New Horizons spacecraft will fly by the object known as (486958) 2014 MU69 on January 1, 2019. This artist’s rendition depicts the probe’s target as a binary pair.

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