David Grinspoon Surface Quotations

We need more Venus missions to really answer the biggest mysteries about the planet. Venus Express will be a great mission and will tell us a lot about the planet, but I think to really make the next leaps in understanding Venus we're going to have to do something more than just orbit the planet. We need to take the plunge and explore the clouds and the surface directly.

In environments that are energy-rich but liquid-poor, like near the surface of Titan, natural selection may favor organisms that use their metabolic heat to melt their own watering holes.