[PatrickHenry]

Late ping for a good thread.

[This ping list for the evolution -- not creationism -- side of evolution threads, and sometimes for other science topics. To be included, or dropped, let me know via freepmail.]

[Godel]

Is this really the first time the speed of gravity has been measured? I mean we pretty much knew it had to propagate at light speed already, im just suprised no one thought of a way test this before, or is the journalist exagerrating a bit?

[RadioAstronomer]

Cool stuff! :-) Thanks!

[edwin hubble]

Thanks for the ping.

The most fascinating thing about this experiment is not that it confirmed the speed of gravity equal to light speed,
but rather that it was not confirmed earlier.

Think how many ways there must be to confirm this speed...orbital mechanics: the precise velocity and position measurements of a comet, for instance. Certainly this information must yield an approximation of the speed of gravity.