There are several possible methods to test this theory. The best and most convincing one is to measure acceleration due to gravity (ADG) below and above the gravitational centre of a big mass. Read more here .

There is several other possibilities. read the chapters:

• The Pioneer Anomaly and the Flyby Anomaly

• The Space Wind

• Irregular Moons

• Dark Matter

If technically possible, measurements of the force of gravity should also be taken directly above the eye of a hurricane. Here we may find gravity to be stronger than expected. Also the sunny eye, and the eye-wall around the eye, of a hurricane could be better understood, since an extended mass must also pull space and matter from its inner core, not only from it's periphery.

Finally, this simple theory claims to easily explain the cause to several natural mysteries, for instance: the cause of gravity, dark matter, dark energy, and much more, based on the same simple and single claim.

This will, sooner or later, certainly bring us to a much deeper and conflict-free scientific picture of the universe, which fits with the latest measurements and discoveries.
This theory’s main thread has led us to many areas of science. Some of which we have so far had limited understanding of and some which we, so far, have had more extensive knowledge. But this theory resolves all limitation of knowledge and explains all of these mysteries. This can not be a coincidence.

Normally, just showing the cause of a single mystery can cause a lot of conflict and raise more questions than the theory is answering. This is not the case with this theory, it solves several mysteries in a single claim.