This is an interesting article I read about how scientists are studying some of the earliest parts of the universe. Using high-powered telescopes they are able to find and study gas pockets that were formed soon after the creation of the universe.

It’s crazy to think in these terms and try to wrap your head around the fact that the things they are studying have been around for over 13 billion years, but the light from them is just reaching earth for the first time.

http://www.scientificamerican.com/article.cfm?id=big-bang-nucleosynthesis-gas