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How A Giant Planet Survived Its Star's Death

Summary by astrobiology.com
When astronomers discovered a giant planet orbiting a dead star in 2020, they wondered how it survived its star’s violent demise. Now, observations from NASA’s James Webb Space Telescope (JWST) may finally explain the planet’s unlikely escape from destruction. In a new study, an international team of scientists — including a Northwestern University astrophysicist — analyzed the planet’s atmosphere for the first time. Using measurements of the pl…
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Observations from the James Webb Space Telescope could explain how a giant planet escaped destruction during its star's death. Related article: A James Webb Telescope finding could clarify the difference between a planet and a star. When stars with masses similar to the Sun's reach the end of their lives, they enter the red giant phase and expand their outer layers. During this process, nearby planets can be engulfed by the star's atmosphere. La…

Giant planets like Jupiter can have a second life after the death of their star. This is suggested by the case of the exoplanet WD 1856 b under the eye of the James Webb space telescope.

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astrobiology.com broke the news on Saturday, July 4, 2026.
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