Weird Worlds.
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| Title: | Weird Worlds. |
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| Authors: | Callaway, K. R. (AUTHOR) |
| Source: | Scientific American. Jun2026, Vol. 334 Issue 6, p8-11. 4p. 1 Color Photograph. |
| Subjects: | Sulfur, Extrasolar planets, Protoplanetary disks, Dwarf stars, Atmospheric composition, Lava |
| Abstract: | The article focuses on the exoplanet L 98-59 d, a sulfur-rich world characterized by a molten magma ocean and a surface temperature exceeding 1,500 degrees Celsius, which challenges existing planetary classification systems. Discovered in 2019 orbiting a red dwarf star, L 98-59 d is about 1.6 times Earth's size but has an unusually low density and a persistent sulfurous atmosphere, unlike typical young volcanic planets. Researchers propose that this planet represents a new class of molten, sulfurous exoplanets formed from volatile-rich protoplanetary disks, suggesting a continuum of planetary types beyond traditional categories like rocky or ocean worlds. Ongoing observations aim to refine understanding of its atmospheric composition and surface conditions, with the potential for identifying similar planets in the near future. This discovery highlights the evolving nature of exoplanet research and the need for more nuanced classification frameworks. [Extracted from the article] |
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| Database: | Psychology and Behavioral Sciences Collection |
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| Abstract: | The article focuses on the exoplanet L 98-59 d, a sulfur-rich world characterized by a molten magma ocean and a surface temperature exceeding 1,500 degrees Celsius, which challenges existing planetary classification systems. Discovered in 2019 orbiting a red dwarf star, L 98-59 d is about 1.6 times Earth's size but has an unusually low density and a persistent sulfurous atmosphere, unlike typical young volcanic planets. Researchers propose that this planet represents a new class of molten, sulfurous exoplanets formed from volatile-rich protoplanetary disks, suggesting a continuum of planetary types beyond traditional categories like rocky or ocean worlds. Ongoing observations aim to refine understanding of its atmospheric composition and surface conditions, with the potential for identifying similar planets in the near future. This discovery highlights the evolving nature of exoplanet research and the need for more nuanced classification frameworks. [Extracted from the article] |
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| ISSN: | 00368733 |
