Private equity, however, appears by comparison to be one of the darker arts.

FORBES: Private Equity's Public Image Issues

But what is certain is that, in a matter of weeks, Italy has become not just a more unsettled place, but a darker and scarier one.

ECONOMIST: Italian politics

The discovery would appear to resolve a longstanding mystery in planetary science: why the walnut-shaped Iapetus has a two-tone complexion, with one side of the moon significantly darker than the other.

BBC: New ring detected around Saturn