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what's up for July asteroids hello and

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welcome I'm Jane Houston Jones at NASA's

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Jet Propulsion Laboratory in Pasadena

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California asteroids are scraps of the

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original building material of our solar

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system so they tell us about our own

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origins after the planets formed

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residual material remained bits of dust

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and rock bumped into each other

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sometimes sticking together and

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sometimes scattering most asteroids

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orbit the Sun between Mars and Jupiter

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in a region known as the asteroid belt

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this month nasa's dawn mission which

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launched in 2007 arrives at the asteroid

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Vesta the first of two objects it'll

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explore Don will study the conditions

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and processes of the solar system's

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earliest time and Vesta and Ceres are

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the right two bodies to study Vesta is

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an asteroid and Ceres is a dwarf planet

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like Pluto Vesta and Ceres reside in the

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boundary area of the asteroid belt where

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the composition of bodies changes from

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being almost dry to showing the effects

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of hydration

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scientists believe Vesta is very dry

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while series may have a layer of water

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ice or even liquid water beneath its

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crust Don will study the roles of water

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and size in determining the evolution of

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the planets

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the spacecraft will orbit Vesta for a

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year next July it'll depart for the

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dwarf planet ceres arriving in February

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of 2015 you can see Vesta yourself this

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month and next it'll be a little

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brighter in August it's the only

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asteroid bright enough to see with your

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unaided eye because of its high albedo

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albedo refers to how well an object

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reflects light series the larger than

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you can easily spot series than your

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telescopes next month check out the dawn

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missions Vesta Fiesta event page and

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find a viewing event near you or host

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avesta viewing event yourself you can

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read all about asteroids at solar system

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NASA gov / y SS for year of the solar

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system you can learn all about NASA's