How did all the matter in the universe come about?
There are many theories The Big Bang: First it was theorized that there was a singularity, an atom. The atom expanded or exploded and on the first “nanoseconds” after the explosion, matter spread so rapidly that space was filled uniformly. But there came warps or defects in the distribution, that clumps formed. And these are the galaxies. Matter continued on expanding and the clumps gathered more matter which fused together to become stars. The temperature on this first nanoseconds was so high that as it cool down the hot matter are still retained in the core of the stars and are still raging thermonuclear reactors. Until now space is still is still expanding as evidenced by the redshifts in the spectrum of light that come from stars and galaxies. Okay open this links to read some more. You can get it from me, but you might as well come to the kitchen to get more food for yourself, hehe http://curious.astro.cornell
