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Illustration of a planet and its cool red dwarf star. In the foreground on the right is the planet, which fills most of the frame. The planet is various shades of blue, with wisps of white scattered throughout. The left edge of the planet (the side facing the star) is lit, while the rest is in shadow. In the background at the lower left is the star, which appears smaller. The star has a bright red glow. Also in the background is another planet, which appears as a small crescent. The black background of space is speckled with a few small stars.

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Illustration of a planet and its cool red dwarf star. In the foreground on the right is the planet, which fills most of the frame. The planet is various shades of blue, with wisps of white scattered throughout. The left edge of the planet (the side facing the star) is lit, while the rest is in shadow. In the background at the lower left is the star, which appears smaller. The star has a bright red glow. Also in the background is another planet, which appears as a small crescent. The black background of space is speckled with a few small stars.
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Space Telescope Science Inst. (spacetelescope@astrodon.social)'s status on Tuesday, 12-Sep-2023 02:55:43 JST Space Telescope Science Inst.

Scientists using #NASAWebb have found an abundance of methane and carbon dioxide in the exoplanet K2-18 b’s atmosphere. With a shortage of ammonia, these results are consistent with the presence of an ocean underneath a hydrogen-rich atmosphere: https://webbtelescope.pub/3r1yWHa #JWST #astronomy

In conversation about a year ago from astrodon.social permalink