If you've been listening to any debate between atheists and Christians, then you've surely heard the Christian say, "How can nothing explode into everything?"
     Christians sometimes quickly jump to conclusions, after all, we're all human. Atheists do not say that there was nothing, they say that in the beginning was empty space. As in "no matter" just space. The Christian must now ask, "Where did the space come from?"
     Before that, I'll give you what the atheists say (the atheists that believe the BB model):
     

• Our universe began with a hot big bang 13.7 billion years ago and has expanded and cooled ever since. It has evolved from a formless soup of elementary particles into the richly structured cosmos of today.
• The first microsecond was the formative period when matter came to dominate over 
  antimatter, the seeds for galaxies and other structures were planted, and dark matter (the unidentified material that holds those structures together) was created.
• The future of the universe lies in the hands of dark energy, an unknown form of energy that caused cosmic expansion to begin accelerating a few billion years ago.

     That was taken from Scientific American.

     Still don't get it? I'll make it a little easier.

     In the beginning was anti-matter and space. There were sub atomic particles such as leptons and quarks and gluons. This area was extremely hot, the particles could not combine until they cooled down, and they did cool down, several hundred thousand years after the beginning. Once it got cool enough, the electrons could be bound to the nuclei (composed of neutrons and protons) by electrostatic attraction. Based on the fundamental laws of quantum mechanics, this is very much possible. If you solved the Schrodinger equation for an electron in the presence of the Coulomb potential of the nucleus, and other electrons, you can calculate the structure of an atom.
     Once the atoms formed, the universe expanded, due to dark energy. Now the future of the cosmos depends solely on dark energy, causing the endless expanse of the universe.

     Does this theory bring up any questions?

     Here's some questions that should pop up:

"Where did the space come from?"
"Where did the sub atomic particles come from?"
"How could you possibly know any of this?"
"Why is this model based on theories unproved yet?"
"What about the Newton's laws of motion?"
"What caused the momentum and inertia of the electrons?"
"What made it all move?"          "Where did all the other atoms come from?"
"Where did the energy come from?"          "Dark energy is just a theory, right?"
"What caused the heat?"           "What about the 2nd laws of thermodynamics?"
"What caused it to cool?" Etc.

     Okay, there's a ton of questions. Albert Einstein said, "If you cannot explain it to a 5 year old so he can understand, then you do not understand it well enough yourself." (Or something like that, out of memory.)
     You cannot explain the Big Bang model to a 5 year old clearly, but he'll still believe you because he thinks you're smart when you use big words.
     Don't forget what a "model" is. A model is just an example to help explain the behaviour of something. Like the atomic model you see a lot.

So the atheists are admitting that there is an eternity. They claim space has always been here, because something cannot, under any circumstance, form from nothing, UNLESS there is Someone that is supernatural to do it.

If dark energy is real, I personally believe dark energy, or something like it, does exist, (That is what quantum physics and mechanics deals with, quanta is a discreet amount of energy) how could it tear apart nothing, and make more space for the expanding mass of hot particles? I don't think it can.

The fundamental laws of quantum mechanics explain how the atoms could have formed, but does not explain where the electrons, neutrons, protons, quarks, leptons, gluons, etc., came from.

Isaac Newton discovered the laws of motion, in order for anything to move, something MUST cause it to move. Or else it will not move. Momentum, inertia, etc. all need a cause, this is the causual argument used by Christians.

Let's take a look at the 1st law of thermodynamics. It states that, "Energy can change forms, but neither matter or energy can be created nor destroyed." Then how the heck could sub-atomic particles jump into existence from empty space?

Also, if it was an area of heated particles, what about the 2nd law of thermodynamics? The word 'thermodynamics' comes from two root words, 'thermo' meaning 'heat' and 'dynamic' meaning power, so thermodynamics has to deal will with heat power and transfer. The 2nd law of thermodynamics (also known as 'increasing entropy) states that "everything tends towards disorder." How could heated electrons and protons bypass the 2nd law of thermodynamics? It's a scientific law! I thought the atheists said their theory was based upon science. But the atheist might say that this law applies only in a close system, and this is true. But before the Big Bang, the universe wasn't expanding, it was contracting. So the universe before the Big Bang was a closed system!