Radiation can make the ice act like a liquid which favours the growth of organic molecules. The researchers from Hokkaido University in Sapporo, Japan found that ice in space behaves like a liquid at -2100C and -1200C temperature range. This favours the formation of the organic compounds that include prebiotic molecules along with dust for the formation of planets.
Covalent bonds or molecular bonds are the chemical bonds involving the sharing of electron pairs between two or more atoms. These electron pairs are also known to be shared pairs or the bonding pairs, the stable balance of attraction and repulsion forces between the atoms when they are sharing electrons is known as the covalent bonding.