"You may be high -
You may be low -
You got to move child
Before you go.
Well when the Lord l
Gets ready.
You got to move"
- Rolling Stones

Hi Bob -

Craters and crater ejecta are one thing (always nice to know what hit, and spectra can go a long way here sa well), but meteorites are another - it's the smaller accretions (meteorite accumulations) which will provide accurate surface dating.

As for our agendas diverging, no doubt I'm a heretic to the Zubrin faithful, but manned Mars would still be nice - it's just a question of when, and what for - in the end, due to the radiation, I doun't think much more than an antarctic size underground research base will be possible, with no terra-forming - oh well, it was a nice dream to have held, back so many years ago

Glad to see you think an MS flight simulator dataset for Mars would be sweet - I sure as hell don't have the time to port the dataset, and making money on it without some kind of exclusivity or distribution channels would be damned difficult - I don't know about your time, but it wouldn't hurt to pass the idea on, as you may run into someone who has the time and ability to make it happen

hope things go well for you wherever you are traveling to -
ep