NASA's scientists have designed a device that would be carefully sterilised, and would then melt its way down through the ice, allowing the melt-water to freeze behind it to prevent contamination.

ECONOMIST: Planetary pretenders

Meanwhile, the Memphis melt shop has gone through three managers and one technical glitch after another.

FORBES: Iron Wills

Bake for 15-20 minutes to heat through and melt the Mozzarella, then set aside for a few minutes to cool.

CNN: Frankie's parmigiana

And in Greenland, scientists suspect the melt waters that drain through holes, or moulins, in the ice cap to the bedrock may have contributed to the speed-up of glaciers in that region, too.

BBC: Under-ice flood speeds up glacier

If you run too much current through them they melt.

BBC: Plastic bulb development promises better quality light

And the peace process is now facing a test, as the snows melt in the mountain passes through which militants cross into the Kashmir valley from the Pakistani side.

ECONOMIST: Kashmir

They said that by using stereolithography, their printer could offer "layer thicknesses and feature sizes that are worlds ahead of what is possible with" the existing technique used by budget printers, which melt plastic and squeeze it through a nozzle to build up each layer of an object.

BBC: Kickstarter sued over 3D Systems' printer patent

In addition, the balls can be made quickly and simply by dropping spheres of amorphous silicon through hot gas, causing them to melt.

ECONOMIST: Semiconductors

Jasper town is nestled in the middle of the national park, where icy glaciers tumble down towering rocky peaks and melt to form wild, white water-choked rivers that cut through pine-filled valleys.

BBC: The natural wonders of Banff and Jasper National Parks