Cyril deGrasse Tyson: key obituary facts
Is Cyril deGrasse Tyson dead? Yes. Cyril deGrasse Tyson died on December 30, 2016, at age 89.
Cause of death: Cyril deGrasse Tyson's cause of death has not been publicly confirmed.
What was Cyril deGrasse Tyson known for?
He was known as American civil rights activist.
American civil rights activist
Died on Friday December 30th 2016