BBC NEWS | Science/Nature | Probe peers into Venusian secrets

Venus is an enigma, wrapped in a mystery, inside a dense cloud of
carbon dioxide (CO2).

But a suite of orbiting instruments is proving its able to penetrate
the thick atmosphere and create a new and dynamic picture of Earth's
sister planet.

Scientists at the Division of Planetary Sciences meeting in Pasadena,
California, this week said that data streaming from the Venus Express
probe had provided unprecedented detail of the Venusian atmosphere and
the first-ever peek at its lower strata.

More at http://news.bbc.co.uk/1/hi/sci/tech/6041570.stm