Nasa's Mars rover Curiosity has used its brush tool for the first time to sweep dust off the surface of a rock.
In 1994, as the Mandela government came to power, Motsepe left the law firm and struck out on his own, hoping to build a business contracting low-level labor like sweeping, where workers use brooms to glean gold dust from the rock surface after industrial mining crews have done their work.
Brushing the surface of rocks with Curiosity's dust removal tool first enables the arm-held hand lens camera and X-ray spectrometer, in particular, to see features that might otherwise be obstructed.
The caesium finds its way into tiny pores on the surface, and the only way to remove it effectively is to grind off the surface, a difficult procedure which can create contaminated dust.
Puffs of dust were evidence of the ball breaking the surface of the pitch as it landed - and batting last should be awkward.
Since Eros's gravity is so small (a person on its surface would weigh only a few dozen grams), this dust probably could not have fallen into the craters in the way that it would on a heavier body.
When I stepped onto the moon's surface, it felt cushiony, not gravelly thanks to all the dust.
The extent of the damage is only beginning to come to the surface, but one thing is for sure: by the time all the dust settles, Americans will have a very different view about our financial system and the risks associated with excessive credit.
Enveloped in a smog of coal dust that softens the sunlight into a hazy glow is the An Tai Bao surface coal mine.
That's why scientists are so interested in water at poles, and the fact Moon dust works well with microwaves and could theoretically be used to make a paved surface if you created roads.
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