On 2020-07-30 8:36 PM, JF Mezei wrote:
[snip]
The other worry, especially in a COVID context is how to ensure humans
who goto mars never return anything that could potentially wipe out
human ciovilization?

Just because the ground where a robotic lander has found only dead life
doesn't mean that there isn't something alive elsewhere, especially if
any digging happens at the colony to get water and whatever is needed to
make methane and O2.


That's why I'm not a big fan of sample return directly to Earth instead
of the ISS or its replacement, commercial or otherwise. But I'm the
cautious type. Some folks are willing to die on Mars, either for the
right or wrong reasons....

Dave