Mars may once have held enough water to fill oceans and form coastlines. The planet’s red dust contains water and likely formed in cold conditions.

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As for carbon steel brands to buy, similar to stainless steel, you can buy direct from a restaurant-supply store. As long as you get a pretty thick pan, it's going to last you the rest of your life.

Although quartz is highly stain-resistant, rust stains can still occur, especially when metal objects like cans or cast iron pans are ... with a non-ammoniated formula. This will lift stains ...

The gel formula comes in a screw cap bottle ... the tiny metal bits interact with moisture in the air. Rust spots can form anywhere iron is present from your brakes and car's frame to railroad ...

Manganese and iron, which are found in tap water in many ... CLR Calcium, Lime and Rust Remover, for example, contains lactic acid and gluconic acid. Vinegar is also an acid that can effectively ...

(NASA/ESA and The Hubble Heritage Team STScI/AURA) It's pretty well established that Mars, rich as it is in iron, is red with rust processes that occurred ... but ferrihydrite with the formula Fe5O8H ...