Scientists have discovered that the most likely source of water on Moon is the constant stream of charged particles from the Sun known as the solar wind. 

The findings by researchers from the University of Michigan imply that ice inside permanently shadowed polar craters on the Moon, sometimes called cold traps, could contain hydrogen atoms ultimately derived from the solar wind.

Theoretical models of lunar water stability dating to the late 1970s suggest that hydrogen ions (protons) from the solar wind can combine with oxygen on the Moon's surface to form water and related compounds called hydroxyls.

An Australian team of scientists including an Indian-origin researcher has developed a graphene coating invisible to the human eye that can make copper nearly 100 times more resistant to corrosion. Researchers from the Monash University and Rice University in the US believe their find could mean paradigm changes in the development of anti-corrosion coatings using extremely thin graphene films.

Graphene is a microscopically thin layer of carbon atoms. It is already in use in such things as smartphone screens, and is attracting research attention for its possibilities as a means of increasing metal's resistance to corrosion. Dr Parama Banerjee, who performed most of the experiments for this study, said graphene had excellent mechanical properties and great strength.