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2,500,000,000 to 542,000,000 years ago The Proterozoic Eon: the most recent part of the Precambrian Supereon.
On September 30, 2014, a suite of NASA instruments spotted what appeared to be a solar eruption - but soon after, a serpentine structure known as a filament rose from the surface and collapsed, being shredded to pieces by invisible magnetic forces.
estimate between 18 and 11 billion with 13.8 being the closest estimation".
4,540,000,000 (4.54 billion) years ago Formation of planet Earth - Usher's date was ).
The United Nations designated 2013 the International Year of Water Cooperation.
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