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JWST Looked for a Moon Around Two Habitable-Zone Worlds and Ran Into Stellar Noise
A new preprint reports that James Webb Space Telescope observations sharpened measurements of two TOI-700 planets but could not confirm an Earth-Moon-like system because the host star’s own variability overwhelmed the ex
Key Takeaways
- JWST improved orbital and radius measurements for TOI-700 d and e.
- Researchers estimate a moon signal would be about 20 ppm, but stellar red noise reached roughly 46 ppm.
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