When was rust found

Jennifer Nalewicki is a Brooklyn-based journalist. You can find more of her work at her website. The blue areas in this composite image from the Moon Mineralogy Mapper M3 aboard the Indian Space Research Organization's Chandrayaan-1 orbiter show water concentrated at the Moon's poles. Homing in on the spectra of rocks there, researchers found signs of hematite, a form of rust. The finding comes after analysis of data from the Indian Space Research Organisation's Chandrayaan-1 orbiter.

Light reflecting off surfaces at both poles was found to have the spectral signature for the mineral hematite - more commonly known as rust. The study's lead author, Shuai Li from the University of Hawaii, called it "very puzzling" as "the moon is a terrible environment for hematite to form in" because it is airless with no oxygen or liquid water.

It shouldn't exist based on the conditions present on the moon. NASA delays moon landings as China becomes 'aggressive competitor' in space race. Firstly, that despite the moon not having an atmosphere, it does contain trace amounts of oxygen - which travels , miles from Earth's magnetic field.

This explains why more hematite is found on the side of the moon facing Earth and suggests our planet may be the driving force for the rust. It is also possible the oxygen travelled from Earth to the moon when the two were closer, as they have been moving apart for billions of years. Brown rust is sometimes localized rust which appears as non-uniform spots or only in certain areas rather than over the whole surface.

Black rust can be visually identified as a thin, black film which is the result of oxidation in a low oxygen environment. Black rust has an appearance of almost a black stain.

Most likely the areas exhibiting the black rust had something covering them, which prevented oxygen from reaching the surface. This type of rust is a more stable rust layer that does not propagate as rapidly as other rust forms. Multiple Forms Multiple forms of corrosion can be present at once Brown rust has a lower moisture content and is most likely the result of atmospheric conditions. Settings where black rust might form include wet paper resting tightly against a metal surface.

Yellow rust has a high moisture content and can frequently be attributed to an environment where water is most likely present.

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