RIP Stephen Hawking. https://t.co/IFp0P6XisT Dr. Kelly Romero2018-03-14T16:34:48-07:00 RIP Stephen Hawking. https://t.co/IFp0P6XisT RIP Stephen Hawking. https://t.co/IFp0P6XisTDr. Kelly Romero2018-03-14T16:34:48-07:00