On Sunday, February 26, 2017 at 3:11:00 PM UTC-8, Sylvain wrote:
"a425couple" a écrit dans le message de groupe de discussion :
...

"Sylvain" wrote in message...
If a extraterrestrial civilization growed on a type system like
TRAPPIST-1 with seven telluric planets whose three planets in habitable
area.
They can more easily that us make the space trips and see more interest
that us to the space trips

I'm not following you my friend.

I will explain better. For example, the informatic quickly progressed
because that there is a commercial interest and is tremendously financed by
the sales.

The astronautic have not the finance by the sales. But for a
extraterrestrial civilization with planets very near whose two in habitable
area, so the space trip become opportune.

The aliens's astronautic would financed more easy. they would learn more
quickly. Planets in habitable area near, this is a foot on stirrup of the
space conquest.

So they can to be more regular with the space trips and then run the
interstellar trips more easily

Why is that? Do you figure they are in less of a gravety hole?

The problem of human on the Mars is not the gravety hole, but the time of
the trip.Once upon in the space, the impulse for Moon or for Mars is almost
same. It is trip's time wich is different.

All medium stars have the same history.All have rock planets orbiting,and gas.some have same strenth of gravity of Earth.Thus they are in same time zone for life.First microbe then higher and higher.Once 25,000 years they are class III A life that now is so far advanced its sci-fiction to us.Trebert