Probing Models of Extended Gravity using Gravity Probe B and LARES   experiments
  We consider models of Extended Gravity and in particular, generic models containing scalar-tensor and higher-order curvature terms, as well as a model derived from noncommutative spectral geometry. Studying, in the weak-field approximation, the geodesic and Lense-Thirring processions, we impose constraints on the free parameters of such models by using the recent experimental results of the Gravity Probe B and LARES satellites. 
S. Capozziello, G. Lambiase, M. Sakellariadou, An. Stabile, Ar.   Stabile
gr-qc astro-ph.CO hep-th