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Gravity- Definition and Importance
  
Earth, courtesy Apollo 17, and probably the most reproduced image of all timeby woodleywonderworks on Flickr

This is where we are; on Earth! Everything that we see around us is here too. If it wasn't for gravity, everything, including us, would not be here but in outer space floating around.

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Humber River Windowby MSVG on Flickr

This is a stack of rocks put together by someone and if it wasn't for gravity this would not have looked like this.

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Pinwheel galaxyby Ethan Hein on Flickr

This is a photo of the pinwheel galaxy which scientist discovered and said is way bigger than our universe. Again, our universe with all the planets and the moon, it is gravity that keeps them in place and allows them to be in exactly the same position as they are. Without gravity, they would have just crashed into each other.We are able to stay on Earth without floating away because the Earth is very big so there is much more gravity pulling us to it and keeping us here.

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Antigravity 2by mark sebastian on Flickr

This picture is showing a man up in mid-air. If there was no gravity this is how we all would have been; just floating.

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Fallenby spaceamoeba on Flickr

This picture shows how difficult it is to stack things without securing them because gravity pulls at each object.

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