Spacecraft arriving at dwarf planet Ceres

This video from the USA says about itself:

Dawn Nears Ceres – Approach Images, Movies and Animations

2 March 2015

NASA’s Dawn mission will arrive at Ceres on March 6, 2015, and will be the first spacecraft to explore a dwarf planet. Ceres is the largest body in the main asteroid belt. At the time of its discovery in 1801 it was considered a planet and later demoted.

From Associated Press:

Mysterious dwarf planet Ceres gets ready for the spotlight


AP Science Writer

March 5, 2015 Updated 4 hours ago

LOS ANGELES — The mysterious dwarf planet Ceres is ready for its close-up.

Located in the asteroid belt between Mars and Jupiter, Ceres is the largest unexplored space rock in the inner solar system. But that distinction ends Friday, when NASA’s Dawn spacecraft arrives after nearly an eight-year journey, which included a stopover at the asteroid Vesta.

Dawn has already beamed back images of Ceres from its approach.

Five things to know about Ceres:


Ceres was spotted on New Year’s Day in 1801 by Italian monk and astronomer Giuseppe Piazzi who was searching for a star. It was the first object discovered in the asteroid belt, a zone littered with rocky debris left over from the formation of the sun and planets 4½ billion years ago.


Piazzi named the object “Ceres Ferdinandea” after the Roman goddess of harvest and in honor of King Ferdinand IV of Naples and Sicily. Other astronomers shortened it to Ceres. The word cereal also has its origins in Ceres. The chemical element cerium, discovered in 1803, was named after Ceres.


Located about 250 million miles from the sun, Ceres was deemed a comet when it was first discovered. Then it was promoted to a planet and later downgraded to an asteroid. Since 2006, it has been classified as a dwarf planet like Pluto, the one-time ninth planet. Dwarf planets are spherical in shape like planets, but they share the same celestial neighborhood with other similar-sized objects.


Ceres — with a diameter of about 600 miles — is thought to have a rocky core surrounded by an icy mantle. Long ago it might have harbored an underground ocean. As Dawn approached Ceres, it spotted a pair of puzzling bright spots inside a crater. Scientists think the shiny dots may be exposed ice or salt.


Launched in 2007 and powered by ion propulsion engines, Dawn will make the first close-ups of a dwarf planet. It will study Ceres for 16 months from varying altitudes, getting as close as 235 miles above Ceres’ surface, or the distance of the International Space Station above Earth.

The spacecraft will take sharper images of the mysterious spots and use its instruments to confirm whether Ceres’ surface is still active and spewing plumes of water vapor.

This summer, another NASA spacecraft dubbed New Horizons will make the first visit to the dwarf planet Pluto.

NASA’s Dawn spacecraft successfully entered orbit around Ceres on March 6. It is the first spacecraft to successfully orbit two extraterrestrial bodies, enabling it to provide data on two different primordial objects in the solar system: here.

The two brightest spots on dwarf planet Ceres, which have fascinated scientists for months, are back in view in the newest images from NASA’s Dawn spacecraft. Dawn took these images on April 14 and 15 from a vantage point 14,000 miles (22,000 kilometers) above Ceres’ north pole: here.

Water has played a big role in shaping dwarf planet Ceres: here.

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