Neil deGrasse Tyson is arguably the most influential, acclaimed scientist on the planet and he has dedicated his life to exploring and explaining the mysteries of the universe. Every year, he receives thousands of letters - from students to prisoners, scientists to priests. Some seek advice, others yearn for inspiration; some are full of despair, others burst with wonder. But they are all searching for understanding, meaning and truth. His replies are by turns wise, funny, and mind-blowing.
Join the galactic conversation on the biggest issues in the universe.