Rig Veda is Modern Astronomy. It describes the Eternity in terms of the evolution of our Sun in a cyclic period called Mahaa Kaala from the proto-star stage and back to its present stage as part of the "CONCEPT OF ETERNITY IN SANAATANA DHARMA" The Hindu cosmology and timeline is the closest to modern scientific timelines 1] and even more which might indicate that the Big Bang is not the beginning of everything, but just the start of the present cycle preceded by an infinite number of universes and to be followed by another infinite number of universes that will be followed by yet another infinite number of universes. Rig Veda is far more advanced then Modern Astronomy because it uses Intelligent Design of Vishnu for the unification of all object with one - another. Most of us are aware that fire-lamps form an integral part of Hindu rituals. We see fire being offered to the deity at prayer time; oblations being put in the sacrificial fire of a Yagna; the seven promises of a marriage ceremony being made circum-ambulating the witness fire; diyas being lit for Diwali and so on... Rig-Veda, places Agni second only to Indra in importance and we find 1/5th of Rig Vedic Hymns dedicated to the Fire-god In fact, the very 1st verse of the Rig-Veda is dedicated to Agni: Agni I laud, the High-priest, Invoker, Minister of Sacrifice, Deva and Bestower of Wealth