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Webb spots possible early-universe supernova just days after it happened

المصدر: Phys.org - latest science and technology news stories · نُشر

Webb spots possible early-universe supernova just days after it happened
المصدر: Phys.org - latest science and technology news stories

The James Webb Space Telescope (JWST) has detected a possible supernova in the early universe just days after the star exploded. Called AT 2026abck, the transient lies in a star-forming galaxy at a redshift of 5.017 and was found without the help of gravitational lensing. JWST ob

The James Webb Space Telescope (JWST) has detected a possible supernova in the early universe just days after the star exploded. Called AT 2026abck, the transient lies in a star-forming galaxy at a redshift of 5.017 and was found without the help of gravitational lensing. JWST observations suggest the event was caught only about four to 10 days after the explosion.

The paper was posted to the arXiv preprint server on Sept. 29.

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Webb finds a surprising atmosphere on a scorching lava world
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Webb finds a surprising atmosphere on a scorching lava world

The James Webb Space Telescope has found strong evidence that the rocky lava world HD 3167 b has an atmosphere, despite circling its star every 24 hours under extreme heat. The surprising discovery could help scientists understand how rocky planets retain atmospheres and what the

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