Complex sentence: However, as noted by astrophysicist Subrahmanyan Chandrasekhar in his 1995 commentary on Newton's "Principia", this theorem remained generally unknown for over three centuries; its first extension came in 2000, and has been studied by Donald Lynden-Bell and collaborators.
Split into simpler sentences: However, as noted by astrophysicist Subrahmanyan Chandrasekhar in his 1995 commentary on Newton's "Principia", this theorem remained generally unknown for over three centuries. Its first extension came in 2000, and has been studied by Donald Lynden-Bell and collaborators.