Where did the water on Earth?

Extensive before that scientists began to wonder about the origin of water on Earth . And so far the official maintained that the volatile elements (such as hydrogen, nitrogen or carbon), and even the first organic matter, arrived here from abroad , contributed by comets and meteorites by class of origin very old, the carbonaceous concretes . Both classes of objects are formed beyond the orbit of Jupiter and "migrated" then into the Solar System.

Where is the center of the universe?

Where is the center of the universe? Well, the answer is confusing: nowhere in particular and also in all...

To understand these things have to make one thing clear about the famous Big Bang: the famous big bang matter filled the empty space, in fact it was a very rapid expansion of space itself, which before the "bang" was fold completatamente on itself at a point of infinite density that scientists call unique .