They are using a different method. In their own words: "The presence of a water wave can be detected by feeling its up-and-down motion or by taking a picture of

They are using a different method. In their own words: "The presence of a water wave can be detected by feeling its up-and-down motion or by taking a picture of it. We are doing the latter." LIGO is doing the former. http://bicepkeck.org/faq.html http://bicepkeck.org/faq.html