Our own galaxy, the Milky Way, has a colossal black hole at its core, too, which is some three million times the mass of our Sun.

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The DA has been through numerous re-branding exercises since its origins in the anti-apartheid movement of the 1970s and 80s, but in the eyes of some people it remains a "white" party, led by a white woman, Helen Zille, and somehow out of touch with the core values of black South Africans.

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Carnivore works as a "black box" attached to the core of ISP networks.

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Verna picks up one of the quarters, examines the layers, each year black, gray, black, gray, black, and at the bottom the featureless core.

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Horatiu Nastase says his calculations show that the core of the fireball has a striking similarity to a black hole.

BBC: Artist's representation of a black hole,

The Brown researcher thinks the particles are disappearing into the fireball's core and reappearing as thermal radiation, just as matter is thought to fall into a black hole and come out as "Hawking" radiation.

BBC: Artist's representation of a black hole,

The tests, which have monitored school standards in core subjects such as maths, reading and science since 1969, also found considerable gaps between black and white pupils across the range of ages and subjects.

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While mining remains white-dominated and prefers to offload peripheral businesses than to see change at its core, consumer-oriented companies, such as retailers and brewers, have long had a lot of black managers in senior positions.

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