The real truth about how life form begin
The 1st Beginning of universe is one of the 10 questions unanswered because they make a mess in an ordinary mind therefore it doesnt help one to attend enlightenment or see the truth of this painful life.
Aggañña Sutta, Buddha states the existence of the universe. The Buddha, speaking to the monk Vasettha, a former Brahmin, states the following:
(please note that Vasettha thero had a much better developped mind than any of us)
"There comes a time, Vasettha, when, after the lapse of a long, long period, this world died. And when this happens, beings have mostly been reborn into the Realm of Radiance [as spiritual beigns]; and there they dwell, made of mind, feeding on rapture, self-luminous, traversing the air, continuing in glory; and thus they remain for a long, long period of time.
There comes also a time, Vasettha, when sooner or later this world begins to re-evolve. When this happens, beings who had deceased from the World of Radiance usually come to life on this world as beings of light... now at that time, all had become one world of water, dark, and of darkness that maketh blind. No moon nor sun appeared, no stars were seen, nor constellations, neither was night manifest nor day, neither months nor half-months, neither years nor seasons, neither female nor male. Beings were reckoned just as beings only. And to those beings, Vasettha, sooner or later after a long time, earth with its savours was spread out in the waters, even as a scum forms on the surface of boiled milky rice that is cooling, so did the earth appear. They feed on the rich earth so their bodies will become physical. as time pass some may look different than others by their color, gender etc....
(does sound like Evolution doesn't it)
Because the Buddha seems to present a model of cosmology wherein the universe expands and contracts over extremely long periods of time, this description has been found by some to be consistent with the expanding universe model and Big Bang. The Buddha seems to be saying here that the universe expands outward, reaches a stabilising point, and then reverts its motion back toward a central point resulting in its destruction, this process again to be repeated infinitely. Throughout this expanding and contracting process, the objects found within the universe undergo periods of development and change over a long stretch of time, according to the environment in which they find themselves. Following this passage above, the Buddha goes on to say that the "beings" he described in this paragraph become attached to an earthlike planet, get reborn there, and remain there for the duration of the life. As a consequence of this, physical characteristics change and evolutionary changes takes place. This is often interpreted as a very rough theory of evolution. Furthermore, the Aggañña Sutta presents water as pre-existent to earthlike planets, with the planet forming with water and the life moving from the water onto the earth. The Buddha does not talk about a specific earth, but about earthlike planets in general.