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en.wikipedia.org/wiki/Gravity

Gravity, or gravitation, is a natural phenomenon by which all things with mass are brought ... For example, gravity causes the Earth and the other planets to orbit the Sun, it also causes the Moon to orbit the Earth, and causes the formation of ...

math.ucr.edu/home/baez/physics/Relativity/GR/gravity.html

The particular advantage of this theory of gravity (General Relativity) is that it ... the distortion of space-time caused by the presence of the earth accelerates your  ...

www.livescience.com/1770-greatest-mysteries-gravity.html

Aug 10, 2007 ... Science can measure gravity, but its source eludes discovery.

www.universetoday.com/75705/where-does-gravity-come-from

Dec 5, 2013 ... So, what is gravity and where does it come from? ... simply put, the mass of an object causes the space around it to essentially bend and curve.

sciencing.com/causes-gravity-earth-8579888.html

Apr 25, 2017 ... Gravity is the force of attraction between all matter. Although gravity exists for even small amounts of matter, the force is usually not significant ...

helios.gsfc.nasa.gov/qa_gp_gr.html

My friend thinks gravity is caused by the Earth spinning, and I think it is caused by the Earth weighing so much we ...

spaceplace.nasa.gov/what-is-gravity

Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planets in orbit around the sun.

www.louisdelmonte.com/what-causes-gravity

Apr 2, 2015 ... It may be hard to believe that the cause of gravity continues to remain one of the great mysteries of science, even to this day. This article will ...

www.thenakedscientists.com/forum/index.php?topic=9197.0

what i mean is that is it caused by the earth's spinning motion?? or what? if not than what causes the earth to spin?? why is it spinning??