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Science & ResearchJul 22, 2026

Planetary-mass exosatellite detected around the substellar companion of a star

Nature, Published online: 22 July 2026; doi:10.1038/s41586-026-10751-w Radial velocity measurements provide evidence for a Jupiter-mass exosatellite orbiting the brown dwarf companion CD-35 2722 B, a promising detection of an exomoon-lik…

Nature, Published online: 22 July 2026; doi:10.1038/s41586-026-10751-w Radial velocity measurements provide evidence for a Jupiter-mass exosatellite orbiting the brown dwarf companion CD-35 2722 B, a promising detection of an exomoon-like object.

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