#SolarSystem facts : The Solar System consists of the #Sun and the astronomical objects gravitationally bound in orbit around it, all of which formed from the collapse of a giant molecular cloud approximately 4.6 billion years ago. 99.86% of the system’s mass is in the Sun.

#SolarSystem facts : The Solar System consists of the #Sun and the astronomical objects gravitationally bound in orbit around it, all of which formed from the collapse of a giant molecular cloud approximately 4.6 billion years ago. 99.86% of the system’s mass is in the Sun.

To celebrate Voyager's accomplishments and enduring legacy, we've charted some of the spacecraft's biggest moments.

Mapping Voyager 1's Incredible 36-Year Mission Through Space [INFOGRAPHIC]

To celebrate Voyager's accomplishments and enduring legacy, we've charted some of the spacecraft's biggest moments.

How to make a Solar System Poster using balls of STYROFOAM. This is the best tutorial. Save this one for school! At some point, every student has to make a model of the Solar System.

How to make a Solar System Poster using balls of STYROFOAM. This is the best tutorial. Save this one for school! At some point, every student has to make a model of the Solar System.

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