Tuesday, July 15, 2025
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SCIENCE

Did JWST catch the Ring Nebula forming new planets? | by Ethan Siegel | Starts With A Bang! | Jul, 2025

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MarylandDigitalNews.comSCIENCE
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Mercury, Venus, and likely Earth will all be devoured.

During the main phase of a star’s life, planets can orbit at nearly any distance from it, including very close in. As the star evolves, it becomes a subgiant and eventually a true giant. As the star increases in size, the frictional drag force on the innermost planet increases; eventually, it will come into contact with and be devoured by the parent star, while the increased stellar brightness has severe consequences for planetary atmospheres and ice-rich objects. (Credit: International Gemini Observatory/NOIRLab/NSF/AURA/P. Marenfeld)

Mass loss will eject the Oort cloud, Kuiper belt, and possibly even Neptune and Uranus.



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