rusty soil

The bleached soil goes over into a red or redbrown horizon called rusty soil.

So he tottered weakly out through the airlock hatch and stood waiting, a fire-engine red figure standing stolidly on the rusty soil of Mars.

Deaths had occurred since he had been here, but they had been statistical accidents, part of Mars City's equation that they all bought into, with that first step onto the rusty soil.

I'm standing in the middle of a pumpkin field bordering Lancaster, snapping Jasmine's Polaroid portrait as she sits in a chair I've brought along, the spindly wooden legs digging deeply into the rusty soil.

We learned that the gullies between dunes are known as dune streets; that the mounds of rusty soil at the roadside are made by mole rats; that a gemsbok must drink every day, while for a wildebeest a long drink of water once a week is enough.