DAVID A. HARDY, FUTURES: 50 YEARS IN SPACE / SCIENCE PHOTO LIBRARY DAVID A. HARDY, FUTURES: 50 YEARS IN SPACE / SCIENCE PHOTO LIBRARY
Nova from a planet. Artwork of a star undergoing a nova explosion, seen from the surface of a planet orbiting it. The intense heat from the explosion has melted the rock on the surface of the planet. A nova is a recurrent stellar explosion. Most commonly it involves a binary star system. A small dense white dwarf star pulls material from a larger star. The material accumulates on the surface of the white dwarf until it becomes hot and dense enough to begin nuclear reactions. The resulting nuclear explosion throws the material off into space at high speed.
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