Iron and nickel vapours found in cold atmosphere of comets for first time ‘It was a big surprise to detect iron and nickel atoms in the atmosphere of all the comets we have observed in the last two decades . 19 May, 2021 15:00
Scientists have spoken of their “big surprise” after discovering iron and nickel vapours in the ultra-cold atmosphere of comets for the first time.
These heavy metals are usually associated with hot environments, but astronomers found atoms of nickel and iron in the clouds of dust and gas surrounding distant comets, more than 480 million kilometres from the Sun (about three times the distance between the Earth and the Sun).
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