JULIAN BAUM / SCIENCE PHOTO LIBRARY JULIAN BAUM / SCIENCE PHOTO LIBRARY
Planets. Artwork of two planets orbiting a white dwarf star. They are dead and frozen worlds, receiving no heat from the cold light of the dwarf star (upper right). This star was once a star like our Sun. It burned brightly on its hydrogen fuel and when that was spent it became a giant red star, ultimately collapsing to form a shrunken, dimly burning white dwarf star. This is the likely fate of our own Sun. In the background is a region of space rich in hydrogen nebulae (blue and red) coalescing to form new stars.
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