"Tamas Feher" wrote in message
...
all those planets are potential colonies for future colonists.

No planet or other celestial body is inhabitable by homo sapiens sapiens,
unless it has gravity between 80% to 120% of Earth. Gravity is the most
fundamental force in the Universe and lack of enough gravity (less than
0.8G) depletes your bones and muscles, prevents successful reproduction
and
fetus formation. To much and you are flat.

And where exactly did you come up with those numbers?

The fact of the matter is we don't know for sure. We simply know that 1G is
good, 0G is not so great, and know nothing about in between.

It may be .6 G is enough... maybe not.



I don't get all the fuss about travel to Mars and Moon, casue what we need
is another Earth. Great pity Venus is in the wrong place, it would be
ideal.