#astronomy Two articles published in the journal "Nature" report different studies on the materials present in the atmospheres of #comets, which appear to contain #iron and #nickel even in the ones far from the Sun.

https://english.tachyonbeam.com/2021/05/21/traces-of-iron-and-nickel-found-in-the-atmospheres-of-comets-far-from-the-sun/