The announcement of the results of Gravity Probe B! (click for more info...)

Prof. Clifford Will was one of the panelists at the press conference (May 4, 2011), representing the Science Advisory Committee for GPB, which he has chaired for the last 13 years.

The GP-B press/media event was carried live on NASA TV, and on the NASA TV website at:

Later that day, they posted the final experimental results in the Status tab on our GP-B website: