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Date : 2010-08-15

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In Depth Asteroids Comets Meteors – NASA Solar System ~ Billions of small space rocks never evolved Amazingly many of these mysterious worlds have been altered very little in the 46 billion years since they first formed Their relatively pristine state makes the comets asteroids and some meteors wonderful storytellers with much to share about what conditions were like in the early solar system

Overview Comets – NASA Solar System Exploration ~ Comets are cosmic snowballs of frozen gases rock and dust that orbit the Sun When frozen they are the size of a small town When a comets orbit brings it close to the Sun it heats up and spews dust and gases into a giant glowing head larger than most planets The dust and gases form a tail that stretches away from the Sun for millions of miles

Comets and Asteroids Space Rocks Our Solar System Greg ~ Comets and Asteroids Space Rocks Our Solar System Greg Roza on FREE shipping on qualifying offers Presents general information about comets and asteroids including what they are what they are made of

Asteroids and Comets Information and Facts National ~ Today most asteroids orbit the sun in a tightly packed belt located between Mars and Jupiter Comets are relegated to either a cloud or belt on the solar system fringe Gravitational tugs orbital collisions and interstellar jostles occasionally perturb an asteroid or comet onto a wayward path

Whats the Difference Between Asteroids Comets and ~ Asteroids At first glance asteroids may seem like runofthemill space rocks but these ancient solar system remnants come in all shapes sizes and flavors

NASA Space Rocks ~ NASA and other scientists study space rocks to help us learn about the origin of our solar system Asteroids are thought to be the leftovers from the formation of the inner solar system including Earth Comets are thought to be leftovers from the formation of the outer planets Finding NEOs NASA has missions to NearEarth Objects NEOs are the comets and asteroids whose orbits have been nudged into Earths path by the gravity of nearby planets

Asteroids – Facts and Information about Asteroids Space ~ Asteroids are leftovers from the formation of our solar system about 46 billion years ago Early on the birth of Jupiter prevented any planetary bodies from forming in the gap between Mars and Jupiter causing the small objects that were there to collide with each other and fragment into the asteroids seen today

Whats That Space Rock Slideshow NASAJPL Edu ~ Asteroids Asteroids are rocky airless worlds that orbit our sun They are remnants left over from the formation of our solar system They can be about as wide as a car to about as wide as the state of Utah Most of the asteroids in our solar system come from a rockfilled region called the Asteroid Belt

This interstellar space rock looks a lot like our own ~ Asteroids comets and other rocky objects litter the solar system left over from when the planets formed Scientists study these space rocks to learn about what the early solar system was