This page introduces the universe where we human races are leading life.
Do you know to how started the universe?
Space was started from a small explosion of "BigBang".

But,we have many doubts about "BigBang".
Now, the BigBang explode in the place with nothing, in space scientific.
It was able to have the seed in space due to the explosion, it grew gradually as the hours go by, and it reached present space.

The big-bang is also the explosion of can the first saying space, and is an explosion with an extraordinary, high temperature and density.
It is calculated that the explosion happened when having happened about 13.7 billion years ago since it is calculated according to the law "Hubble's law".
"Space" will keep expanding, and there will be outskirts in space now if it describes basing a story a little while ago.
However, when it doesn't advance, it might be impossible that we human races reach the outskirts ..keeping the extension of space.. abnormal the science and technology.
Space starts from a small explosion anyway, expands, and will reach soon though deflected a little the topic.

Then, it explains how the theory of the big-bang was shown.
To begin with, there are some theories of the space birth.
As for contents, the theory of not changing was believed by a lot of scientists though time changed into space "Continuous creation theory" that the Fred foil, Thomas Gold, and Hellman Bondi announced in 1948 until the big-bang theory was announced.
However, the big-bang theory came to think it was accurate by having discovered ..George Gamof.. cosmic microwave background radiation (CMB) (various shapes of waves other ..the radiation and ultraviolet rays.. that existed in space) in 1948 to exist.
After that, it is though the expansion of the universe is proven now by huge data of the space satellite such as the Hubble space telescopes.

However, it is an aerospace engineering and "Beginning of space" is still field covered with the mysteries.
Such a field is that the research will advance in the future.