The late astrophysicist Carl Sagan (1980) noted that "the Hindu religion is the only one of the world’s great faiths dedicated to the idea that the Cosmos itself undergoes an immense, indeed an infinite, number of births and deaths. It is the only religion in which the time cycles correspond, no doubt by accident, to those of modern scientific cosmology. Its cycles run from our ordinary day and ni...ght to a day and night of Brahma, 8.64 billion years long, longer than the age of the Earth or the Sun and about half the time since the Big Bang. And there are much longer time scales still." Now science also proving that how universe is endless.Big bang is not the beginning but a instant in this infinite cosmic journey Nancy Wilson Ross (1901 -1986) made her first trip to Japan, China, Korea and India in 1939. She was the author of several books including The World of Zen and Time's Left Corner. Miss Ross lectured on Zen Buddhism at the Jungian Institute in Zurich. She served on the board of the Asia Society of New York which was founded by John D. Rockefeller III since its founding in 1956and was on the governing board of the India Council. In private life she was known as Mrs. Stanley Young. She has written: " Many hundreds of years before those great European pioneers, Galileo and Copernicus, had to pay heavy prices in ridicule and excommunication for their daring theories, a section of the Vedas known as the Brahmanas contained this astounding statement: “The sun never sets or rises. When people think the sun is setting, he only changes about after reaching the end of the day and makes night below and day to what is on the other side. Then, when people think he rises in the morning, he only shifts himself about after reaching the end of the day night, and makes day below and night to what is on the other side. In truth, he does not see at all.” Dick Teresi author and coauthor of several books about science and technology, including The God Particle. He is cofounder of Omni magazine and has written for Discover, The New York Times Magazine, and The Atlantic Monthly. He says "Hindu cosmologists, the first to estimate the age of the earth at more than 4 billion years. They came closest to modern ideas of atomism, quantum physics, and other current theories. India developed very early, enduring atomist theories of matter. Possibly Greek atomistic thought was influenced by India, via the Persian civilization." Science says age of the earth is 4.54 billion years approximately. Manusmruti estimated age of earth 4.32 billion years approximately which is strikingly very near to modern calculation. Professor Arthur Holmes (1895-1965) geologist, professor at the University of Durham. He writes regarding the age of the earth in his great book, The Age of Earth (1913) as follows: "Long before it became a scientific aspiration to estimate the age of the earth, many elaborate systems of the world chronology had been devised by the sages of antiquity. The most remarkable of these occult time-scales is that of the ancient Hindus, whose astonishing concept of the Earth's duration has been traced back to Manusmriti, a sacred book." When the Hindu calculation of the present age of the earth and the expanding universe could make Professor Holmes so astonished, the precision with which the Hindu calculation regarding the age of the entire Universe was made would make any man spellbound.