Dr. Katie Mack, a theoretical astrophysicist, walks #1 New York Times bestselling author John Green through the history of the entire universe – including the parts that haven’t been written yet. All episodes of this limited series Crash Course podcast are now available.

¡Hola! En Crash Course creemos que todas las personas merecen tener acceso gratuito a contenido educativo de alta calidad. Hemos creado más de 45 cursos en inglés sobre un gran variedad de temas, y ahora nos estamos expandiendo al mundo hispanohablante, comenzando con Crash Course Fundamentos de Química.

Welcome to Crash Course Kids! From the creators of Crash Course, this channel for 3rd- to 5th-graders engages learners’ curiosity with STEM and humanities subjects. We dig deep into stories, poems, and fairy tales and explore the universe, from outer space to life on Earth. Join us for standards-matched videos to support any classroom or homeschool space.

At Crash Course, we believe that high quality educational videos should be available to everyone for free. The Crash Course team has produced more than 50 courses to date, and these videos accompany high school and college level classes ranging from the humanities to the sciences. Crash Course transforms the traditional textbook model by presenting information in a fast-paced format, enhancing the learning experience.