Explosions In The Sun, An End Human History? Amazing Documentary <br /> <br />A nova is a cataclysmic nuclear explosion on a white dwarf, which causes a sudden brightening of the star. Novae are not to be confused with other brightening phenomena such as supernovae or luminous red novae. A nova is caused by the accretion of hydrogen onto the surface of the star, which ignites and starts nuclear fusion in a raging manner. Novae are thought to occur on the surface of a white dwarf in a binary system. If the two stars are close enough, material can be pulled from the companion star's surface onto the white dwarf. <br /> <br />SUBSCRIBE FOR MORE DOCUMENTARY FILMS HD UPDATES: <br />LIFE DOCUMENTARIES - DOCUMENTARY - DOCUMENTARY - DOCUMENTARY - AND MEDICINE DOCUMENTARY - DOCUMENTARY - DOCUMENTARY - DOCUMENTARY - us : <br /> <br />film, <br />free documentary movies online, <br />watch full movies online, <br />documentary, <br />science documentary, <br />free documentary movies, <br />watch free documentaries, <br />free online documentary, <br />film free online watch, <br />free documentaries online, <br />music documentaries, <br />documentaries, <br />video documentaries, <br />free movie watch, <br />watch the movie, <br />online free movie, <br />film making, <br />short film making, <br />make music videos, <br />best documentary, <br />top documentary, <br />best documentaries, <br />best documentary film, <br />best documentary films, <br />2014 best documentary, <br />2014 best documentary film, <br />2014 best documentary films, <br />2014 best documentaries, <br />watch 2014 best documentary, <br />watch 2014 best documentary films, <br />watch 2014 best documentaries, <br />top documentary films, <br />top documentaries, <br />2014 top documentary, <br />2014 top documentary film, <br />2014 top documentary films <br />2014 top documentaries, <br />documentary online, <br />documentaries online, <br />nova, <br />nova secret of the sun,
