Complex sentence: Jill Cornell Tarter (born 1944) is an American astronomer and the current of the Center for SETI Research, holding the Bernard M. Oliver Chair for SETI at the SETI Institute.
Split into simpler sentences: Jill Cornell Tarter (born 1944) is an American astronomer and the current of the Center for SETI Research. She holds the Bernard M. Oliver Chair for SETI at the SETI Institute.