Only a few billion years! Our mother earth with all its living and non-living things will vanish. But, not instantaneously. It will take five distinct steps to extinguish 8.7 million species of our earth, which is the unique one in the whole universe to have life. 600 million Years from now: All plants will be dead, as Carbon dioxide level will fall below the required minimum level for photosynthesis. As a result, all herbivores and eventually all carnivores will die. 3 billion Years from now: Magnetosphere, the protective layer of atmosphere, which prevents solar radiation, will collapse exposing our mother earth to all types of ionising radiations. As a result, cancer and other sicknesses will take over, extinguishing life. 4 billion Years from now: Each year, the temperature of the sun is increasing a little bit and it will get 10% hotter in every billion years. Over 4 billion years it will get 40% hotter. A considerable sum of its energy will be absorbed by our atmosphere. As the temperature of our atmosphere increases, the temperature of the oceans will be rising, resulting in evaporation of all ocean water, destroying all marine life and a major source of our atmospheric oxygen. 7.5 billion years from now: The sun will be expanded and converted into a red giant, with a great magnetic power. It will attract the earth to itself and ultimately the earth will be crushed upon it, destroying all things on it. 50 billion years from now: Our moon is gradually moving away from us, very slowly.It moves away 4 cm each year from us. Ultimately, it will be so far away from us, that it will no longer be tidally attached with us. However, as moon goes farther away, it will mean the end of ocean tides and ocean currents, resulting in mass extinction of marine life. 10^106 years from now: Our universe is expanding in an accelerated rate and all the stars are moving away from each other. Eventually, a stage will be reached, where matter will be so stretched in thin layers that all living and non -living matters will be destroyed by stretching away. The density will become so small, that no new star will be born and all the old stars will be dead. What do we do? Let’s get away from earth and set a voyage for a new universe to live in!
