On 11/4/2017 9:01 PM, jacobnavia wrote:
If there is anew kind of attractive force, unknown to us, that pulls
matter together, we should be able to see some effects of this feeble
force in our environment.

Only if it is strong enough at the (relatively) short distances
of "our environment".

Now, consider the earth moon system. We have a mirror there, that can
reflect any laser beam to the earth.

We also have satellites and spacecraft at larger distances.

...
We have extremely precise clocks, and we have even detected
gravitational waves. I do not think that detecting this force is very
difficult,

So you have information as to whether it is strong enough at the
relatively short distances of our environment, as mentioned above?

...
But gravity decreases as the square of distance, and doesn't reach as
far as this new force, even feebler than gravity.

OK, you propose a force decaying more slowly than 1/r^2

But it is feasible for astronomers to catch it now, they have all the
required technology.

Nobody is looking however.

Looking for perturbations in the orbits of the planets that point to the
center of the galaxy.

You are mistaken, people are constantly looking. Remember all
the activity related to the Pioneer anomaly, or more recently
(and based on the orbits of the planets) the search for planet
nine.

But all this analysis of forces (at the relatively short distances
of our environment) just hasn't (yet) provided any evidence for
the long-range force that you propose! You should be more patient.
(At least for planet nine now the evidence is mounting..)

--
Jos