In addition to gathering information with powerful new telescopes, we have sent spacecraft directly to many members of the planetary system. ![]() ![]() The central part of this cloud became the Sun, and a small fraction of the material in the outer parts eventually formed the other objects.ĭuring the past 50 years, we have learned more about the solar system than anyone imagined before the space age. They represent clumps of material that condensed from an enormous cloud of gas and dust. Decades of observation and spacecraft exploration have revealed that most of these objects formed together with the Sun about 4.5 billion years ago. The solar system 1 consists of the Sun and many smaller objects: the planets, their moons and rings, and such “debris” as asteroids, comets, and dust. Model the solar system with distances from everyday life to better comprehend distances in space.Describe the types of small bodies in our solar system, their locations, and how they formed.Describe how the objects in our solar system are identified, explored, and characterized.By the end of this section, you will be able to:
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