Contact: Christine Pulliam
Harvard-Smithsonian Center for Astrophysics
Caption: This illustration shows a habitable planet orbiting a white dwarf. A new study finds that we could detect oxygen in the atmosphere of a habitable planet orbiting a white dwarf (as shown in this artist's illustration) much more easily than for an Earth-like planet orbiting a Sun-like star. Here the ghostly blue ring is a planetary nebula - hydrogen gas the star ejected as it evolved from a red giant to a white dwarf.
Credit: David A. Aguilar (CfA)
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