Editing Quantum tunnelling (section)

==== Astrochemistry in interstellar clouds ====
By including quantum tunnelling, the [[Astrochemistry|astrochemical]] syntheses of various molecules in [[interstellar cloud]]s can be explained, such as the synthesis of [[Hydrogen#Spin isomers|molecular hydrogen]], [[water]] ([[ice]]) and the [[Abiogenesis|prebiotic]] important [[formaldehyde]].<ref name="Trixler2013" /> Tunnelling of molecular hydrogen has been observed in the lab.<ref>{{Cite journal |last1=Wild |first1=Robert |last2=Nötzold |first2=Markus |last3=Simpson |first3=Malcolm |last4=Tran |first4=Thuy Dung |last5=Wester |first5=Roland |date=2023-03-01 |title=Tunnelling measured in a very slow ion–molecule reaction |url=https://www.nature.com/articles/s41586-023-05727-z |journal=Nature |volume=615 |issue=7952 |language=en |pages=425–429 |doi=10.1038/s41586-023-05727-z |pmid=36859549 |arxiv=2303.14948 |bibcode=2023Natur.615..425W |s2cid=257282176 |issn=1476-4687}}</ref>