All Subjects
      All Types




        Permitted Use

        Stream Only

        Part of Crash Course
        14 Favorites

        Brown Dwarfs | Crash Course Astronomy

        While Jupiter is nowhere near massive enough to initiate fusion in its core, there are even more massive objects out there that fall short of that achievement, and they are called brown dwarfs. Brown dwarfs have a mass that places them between giant planets and small stars. They were only recently discovered in the 1990s, but thousands are now known. More massive ones can fuse deuterium, and even lithium, but not hydrogen, distinguishing them from normal stars.

        To find more videos from Crash Course, visit our collection page.


        You must be logged in to use this feature

        Need an account?
        Register Now