tombi123 on 22 July 2010
Matter is created (and destroyed) all the time. It is happening billions and billions of times every second throughout the universe.
The Heisenberg Uncertainty Principle says there is always an uncertainty in energy and time (this uncertainty has nothing to do with the equipment we use to take measurements with but is built into the very fabric of the universe). Even something with zero energy (like a perfect vacuum) has an uncertainty in energy. Therefore energy (and therefore matter (E=mc^2)) can be created out of nothing.
Type "Quantum Fluctuations" into google for more information on how a universe can be created out of nothing.
