Gravitational mass Vs inertial mass not the same?:

http://phys.org/news/2013-01-einstein-emc2-outer-space.html

This new theory was greeted by a lot of skepticism but also some curiosity.

It says the gravitational mass is different, slightly, from inertial mass and is only the same in flat space (away from mass).

That is a very interesting theory. I would like to see it tested so we get the results.

Originally posted by Metal Brain
That is a very interesting theory. I would like to see it tested so we get the results.

The test they want to do is go up about 20000 miles away from earth and do the test, that would simulate doing it in flat space.

I see another way, a bit more difficult: Take a spacecraft as close to the sun as you can get without frying and do the same test, the difference should be a lot greater than what we see on earth, going in the other direction of bent space, deeper gravity well near the sun.