Penrose Unilluminable Room is a room with mirrored walls that can't be fully illuminated by a single point source of light ~science mathematics Video 10:24 3 votes
New evidence for cyclic universe claimed by Roger Penrose and colleagues ~space Article 943 words, published Aug 21 2018 6 votes
Sean Carroll's Mindscape Podcast #28: Roger Penrose on spacetime, consciousness, and the universe ~space Link 3 votes