❓Drop your questions in the comments below, and tune in to join the conversation in real time. Tomorrow, Friday, August 22 at 2pm EST on the World Science Festival YouTube Channel Brian Greene will be LIVE answering your biggest questions about the cosmos, black holes, quantum mechanics, string theory, and more. Don’t miss this chance to ask your burning questions about the universe. youtube.com/live/I3_me7RqteE #briangreene #science #worldsciencefestival #physics