Understanding the Universe: An Introduction to Astronomy, 2nd Edition Season 1 Episode 50 Brown Dwarfs and Free-Floating Planets
- October 19, 2023
- 31 min
Brown dwarfs are low-mass objects whose dim glow is caused by slow gravitational contraction and the fusion of deuterium, a heavier but far less abundant isotope of hydrogen. Free-floating planets have even less mass than brown dwarfs and are not associated with any star.