Filippenko was awarded the Newton Lacy Pierce Prize in Astronomy in 1992 and a Guggenheim Fellowship in 2000. In 1997, the Canadian Astronomical Society invited him to give the Robert M. Petrie Prize Lecture for his significant contributions to astrophysical research. He was also invited to give the 42nd Oppenheimer Memorial Lecture in 2012. He was recognized in the 2007 Gruber Cosmology Prize for his work with then Miller Postdoctoral Fellow Adam G. Riess and for his highly specialized contributions in measurement of the apparent brightness of distant supernovae, which accurately established the distances that support the conclusion of an increasingly rapid expansion of the universe. (Riess shared the 2011 Nobel Prize in Physics for the discovery.) Filippenko was elected to the National Academy of Sciences in 2009. He shared the