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In 500-900 million years, increased surface temperatures will accelerate the inorganic CO² cycle, reducing it to lethally low levels for plants.This will lead a lack of vegetation, followed by a loss of oxygen in the atmosphere, triggering a cycle of extinction over the course of several million years.Above the Arctic Circle, an extreme case is reached where there is no daylight at all for part of the year – up to six months at the North Pole itself, which is known as a “polar night”.

We have many interesting articles about Earth here at Universe Today.In terms of its orbit, Earth has a very minor eccentricity (approx.0.0167) and ranges in its distance from the Sun from 147,095,000 km (0.983 AU) at perihelion to 151,930,000 km (1.015 AU) at aphelion. semi-major axis) of 149,598,261 km, which is the basis of a single Astronomical Unit (AU). Though technically a full day is considered to be 24 hours long, our planet takes precisely 23h 56m and 4 s to complete a single sidereal rotation (0.997 Earth days).This place Earth in a prime location with regards to our Sun’s Habitable Zone.Earth has a number of nicknames, including the Blue Planet, Gaia, Terra, and “the world” – which reflects its centrality to the creation stories of every single human culture that has ever existed.

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