NASA reveals new image of dwarf planet 'like nothing that humanity has ever seen before'

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NASA unveiled a new image of the dwarf planet Ceres that "is like nothing that humanity has ever seen before."

In addition to being a dwarf planet, Ceres is also the largest known asteroid, with a diameter approaching 600 miles. It also contains the largest mountain on the largest known asteroid in the solar system, Ahuna Mons, which rises more than 13,000 feet. It's unclear exactly what caused the formation of Ahuna Mons, with its slopes decorated by vertical streaks, but the space agency has a new theory.

"The new hypothesis, based on numerous gravity measurements, holds that a bubble of mud rose from deep within the dwarf planet and pushed through the icy surface at a weak point rich in reflective salt — and then froze," NASA said in a statement.

Unusual Mountain Ahuna Mons on Asteroid Ceres (Credit: Dawn Mission, NASA, JPL-Caltech, UCLA, MPS/DLR/IDA)

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By comparison, the largest mountain on Earth, Mount Everest, rises 29,029 feet.

"In this region, the interior of Ceres is not solid and rigid, but moving and at least partially fluid," Wladimir Neumann of the DLR Institute of Planetary Research in Berlin-Adlershof and the University of Münster, said in a statement. "This ‘bubble’ that formed in the mantle of Ceres beneath Ahuna Mons is a mixture of saline water and rock components."

The study has been published in the journal Nature Geoscience.

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Ceres is the largest object in the asteroid belt between Mars and Jupiter and was first spotted by Giuseppe Piazzi in 1801. In 2015, it became the first dwarf planet to be visited by a spacecraft, NASA wrote in a separate description of Ceres.

The visualization was based on data from Dawn, which is still orbiting Ceres, but has run out of fuel and is effectively dead.

In 2017, Dawn found the building blocks for life on the dwarf planet, spotting organic molecules which appeared to form on Ceres and not from an asteroid or comet strike.

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A previous version of this story said Ahuna Mons was the largest mountain outside of Earth. It is the largest mountain on a known asteroid. Fox News regrets this error.