The total lifespan of the Universe is 311 trillion and 40 Billion years. This Universe is 155.522 trillion years old and it will end in 155.518 trillion years time. This calculation is based on the life of Brahma.
There are millions of Universes.All Universes have life, are closed, of different size and properties.During the lifetime of each Universe, there are partial creations and annihilations. At the beginning of each day of Brahma there is creation and at the end of each day there is partial annihilation. One day of Brahma is 4.32 Billion years; the night is also of the same duration. We are currently half way through the current day of Brahma, thus we have existed for approximately 2.16 Billions years in the current small cycle.
There are 8.4 million species of living beings in the whole of creation.
900,000 species of aquatic
2,000,000 species of plants
1,100,000 species of insects
1,000,000 species of birds
3,000,000 species of beasts
400,000 species of human beings
Not all these species are present on this planet.
There are 4 ages in which we keep circulating one after another.
Satya Yuga: The age of the truth and true religion. Everyone in the world is truthful and follower of the only religion in the world, the Vedic religion. The yuga (age) lasts 1.728 million years and the lifespan of humans is up to 100,000 years.
Scientifc Knowleage given here during Satya Yuga is According to modern science, the sperm is mostly nuclear material and the ovum is food material. So it is possible to create a human being only from sperm if proper nourishment is supplied to it. Similarly, it is possible, as in "parthenogenesis," to create an animal only from an ovum if that ovum is stimulated by some means. This phenomenon is also described in the Mahabharata when the sage Vasishtha says that an embryo can develop only from the female and, more emphatically, that the whole body of an offspring can develop only from sperm without the involvement of the female. And Vasishtha may say this with conviction because he himself was born without the help of a mother. The sage Agasti, his "twin," was "born" at the same time out of the same kumbha, or pot. In this, the first of such successful experiments, the scientists Mitra and Varuna mixed their sperm and processed it in a pot and produced human male twins, in the age known as Satyayuga, the Age of Truth. Lay man terms Cloning.
Treta Yuga: The introduction of ignorance takes place in this age. The Vedic religion is the only one in the world. The yuga (age) lasts 1.296 million years and the lifespan of humans is up to 10,000 years. Lord Rama(Krishna) Existed here, in his pastimes, he instructed the Intelligent Apes to construct the bridge between Southern India and Sri Lanka.
[font=Arial, Helvetica, Sans-serif]A NASA satellite picture had brought the land strip under focus and some reports had mentioned that this was only a coral reef dating back 1.7 million years. but obviosuly Scientist are athiest and by accepting the Ramayana will not do them any good. This Bridge was constructed By the Early Apes under the Supervision of Lord Rama. Made of Stones clustered together, forming a curve. which describe exactly the spot between Rameswaram(South India) to Sri Lanka.[/font]
Map of Rama's/Adam's Bridge and environs
Dvapara Yuga: Increased decline in the truth and religious values takes effect in this age. The Vedic religion is the only one in the world. The yuga lasts 864,000 years and the lifespan of humans is 1,000 years. Lord Krishna himself ended this Yuga, All the major cities around the world sank, Advanced Spiritual Technology were lost.
This was one of the Technology which was Lost. Airplanes which can Fly to different Planets.
One time while King Citaketu was traveling in outer space on a brilliantly effulgent airplane given to him by Lord Vishnu, he saw Lord Siva..."
"The arrows released by Lord Siva appeared like fiery beams emanating from the sun globe and covered the three residential airplanes, which could then no longer be seen."
- Srimad Bhagasvatam, Sixth Canto, Part 3
"Now Vata's chariot's greatness! Breaking goes it,
And Thunderous is its noise,
To heaven it touches,
Makes light lurid [a red fiery glare], and whirls dust upon the earth."
- Rig-Veda
Rig Veda is the oldest religious scripture in the world. vata here is a demi-god.
Another Technology which was lost but somehow managed to gain back from the modern scientist is Stem Cell research. Early in the Mahabharata, there is a story about how the hundred Kaurava brothers came into being. Their mother had produced a mass of flesh after two years of Pregnancy. But Then a Sage divided the flesh into 100 parts, which were treated with herbs, ghee and uttering of some mantras and kept in pots for two years from which the Karuvas Brothers emerged. It is a early instance of human cloning through stem cells extracted from the human embryos.
Kali-Yuga- The Age of Irreligion and ignorance, In the beginning of Kali-Yuga many religions pop up from nowhere, but these religions will gradually completely disappear from the face of the Earth one by one in a matter of thousand years. After 15,000 years into Kali-Yuga, there will be a major destruction of the world, most living beings will perished, life will then go back to primative ways with swords and arrows due to the lost of technology. Humans will grow shorter and shorter, life-span decreses, due to lack of healthy stuffs, Suns gets hotter and hotter by the day, Humans will resort to canniblism 427,000 Years from now Lord Kalki(Krishna) will appear mounted on a white horse with a blazing sword on his hand. He comes not to teach but to Kill, Liberating everyone on sight. This Yuga lasts 432,000 Years and the Life Span of humans will be up to 100Years. We are currently 5000years into Kali Yuga.
