The latest from Gravity B has helped to endorse the view of warped spacetime as the explanation of gravity; hence clues on how to interact...

Here is a link to a news story on this;

http://physicsweb.org/articles/news/11/4/11/1

    However , (But) Stanford and NASA did have some difficulties that perhaps reduce the reliability of the experimental results, and that is a shame as these results should have nailed this question for all time, but instead may require much more money to settle this question...

More on that is in some of the issues of Nature from December in 2006.

Mystery