is in an object.
Mass is commonly measured
by how much something weighs.
2. Gravity is a force of attraction that exists
between any two masses, any two bodies,
any two particles. Gravity is not just the
attraction between objects and the Earth.
3.It is an attraction that exists between all
objects, everywhere in the universe.
4.Outer space is not completely
empty—it is a hard vacuum containing
a low density of particles, predominantly
a plasma of hydrogen and helium, as well
as electromagnetic radiation,
magnetic fields, neutrinos, dust,
and cosmic rays.
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