The highest dune here soars to 380 metres, and tinted red by its high iron content it glows almost crimson at dusk.

BBC: The ghostly shore of Namibia��s Skeleton Coast

But it wasn't until the 1980's that the American oceanographer John Martin measured the iron content of the seawater in HNLC zones and found negligible amounts.

CNN: Topical waters

In this one region, some 2, 000 caverns have been found and scientists regard them as potentially precious features because of their iron content, unusual biology and archaeological remains.

BBC: Forests and caves of iron: An Amazon dilemma

Contaminated water has been abstracted and treated from the mine since 1992 following an drainage burst which caused visible pollution from mine water coloured orange by the high iron content.

BBC: An archive picture of Wheal Jane

One recent study of more than 450 Sun-like stars within about 325 light-years of Earth indicated most had high iron content in their photospheres, or on their surfaces - again, evidence the stars had gorged themselves on planetary material.

BBC: Star 'eats' a planet

Or will all non-Iron Man content be unique?

FORBES: LEGO to Bring Marvel Comics Goodness to a Videogame Console Near You

But savings on the big-iron bill are being translated into more content, and that's where these cars get scary.

WSJ: A Bargain-Priced Hatch that's a Kick in the Pants

"The security establishment is more than content with the system's impressive results and will continue to acquire more 'Iron Dome' batteries, " he added, concluding that, in short, "the system saves lives".

BBC: Israel's Iron Dome: Doubts over success rate