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Is there water present on asteroids?

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Asteroids, not comets, may have delivered most of Earth's water to the planet when the solar system was young, new data from a probe orbiting a comet suggests. Comets are some of the solar system's most primitive building blocks, with many dating to soon after its formation. read more

t a good possibility for this scenario because the water they hold tends to be of a slightly different nature, with atoms in a different configuration, or isotope, than most of the water on Earth. read more

The presence and distribution of water in asteroids is relevant to the origin and evolution of these objects, of our Solar System, and even of Earth's own water. Water in asteroids has been detected in the form of hydrated minerals and recently as surface ice. The study of water and hydrated minerals in meteorites is equally exciting and relevant. read more

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