We hope to be in pivotal trials this year.

The failure to find DNA in the Martian rock is assumed to argue against Martian life. But this logic is coherent only if Martian life must use the same type of DNA as Earth life uses.

Our plan is to shoot for the goal of reaching $1 billion in total operating revenue and delivering 25 percent top- and bottom-line annual growth from now until 2010.

If you really want to find a place to get life started, it's Mars, and if you want to get a place to get life to flourish, it's Earth.