Dawn's mission team is sure it won't spiral down towards Ceres's icy depths for at least 50 years.
Dawn will lose its ability to communicate with Earth, but will remain in a silent orbit around Ceres.
The reaction wheel's malfunctioning will not significantly impact the rest of the extended mission at Ceres.
NASA's Dawn spacecraft has shown the brightest spots on the dwarf planet Ceres that are gleaming with mystery.
Something interesting is brewing on the dwarf planet Ceres. The largest asteroid in the asteroid belt that lies between Mars and Jupiter, Ceres has been throwing surprises at scientists. Earlier, Ceres had mystified astronomers with its bright spots. Now, it's Pyramids!