oxygen in a distant galaxy at a distance of about 12 billion light-years from Earth.
The researchers, led by professor of astronomy Alice Σάπλεϊ of the University of California-Los Angeles (UCLA), who made the relevant publication in the journal astrophysics “Astrophysical Journal Letters”, used the large Keck telescope on mount ΜαουνακÎα of Hawaii to make the first accurate measurement of oxygen in a galaxy far, far away.
Oxygen, the third most abundant chemical element in the universe, is created in the interior of stars and, when they die, and εκÏήγυνται (super-nova), is released in the interstellar gas.
The galaxy COSMOS-1908 where the detection of oxygen, it contains about a billion stars, far less than the 100 billion of our own galaxy. In addition, this remote galaxy contains only about 20% of the oxygen that has been observed in the Sun.
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How far can there be oxygen?
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