Hydrogen was indeed found, but it is still unclear whether it is in the form of ice, or of some other hydrogen-containing compound, such as hydrated minerals that have water bound chemically into their crystal structures.

ECONOMIST: Creative destruction

Water is inseparably bound up with the Arab-Israeli conflict, most obviously over who controls the Jordan river.

ECONOMIST: Water

The impact will not, however, be sufficiently energetic to melt the lunar soil and release any water that is bound in hydrated minerals.

ECONOMIST: Creative destruction

In a country bound by rules about everything, water safety is a surprising exception.

ECONOMIST: Unsafe waters

While the caesium is hard for plants and animals to take up when it is tightly bound to the soil, once in solution (dissolved in water) it can be more readily absorbed.

BBC: Daunting challenge of Fukushima clean-up

This finding ties in with the revelation of hydrogen on Vesta, because the likeliest explanation for the indentations on the surface is that hydrogen, which is likely bound up in minerals there, is released in the form of water vapor when the material is heated up by impacts.

MSN: Surprisingly, giant asteroid Vesta covered in hydrogen

Beth Irving and Teach Carter have their hands bound in coloured ribbons representing the elements of earth, wind, fire and water.

BBC: UK

The water companies insist they have a good record of releasing environmental data without having to be bound by the regulations.

BBC: A Big Mac with extra FOIs, please

The first one focused on helping ocean bound private boats remove barnacles from their hulls by sending a diver into the water below the boat with a high pressure hose.

FORBES: Barnacles, Diamonds and Cows: 5 Startup Failures--My 5 Lessons Learned