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NASA's TESS Discovers Water-Rich Super-Earth TOI-1846b

7/18/2025

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Summary

Story summary

NASA's TESS has unveiled the intriguing exoplanet TOI-1846b, a super-Earth orbiting an M dwarf star. Initially thought to emit “strange signals,” these were simply the expected transit signals revealing the planet's existence. With a radius 1.8 times that of Earth, TOI-1846b could be rich in water, shedding light on the mysteries of planet formation.

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Story summary

NASA's TESS has unveiled the intriguing exoplanet TOI-1846b, a super-Earth orbiting an M dwarf star. Initially thought to emit “strange signals,” these were simply the expected transit signals revealing the planet's existence. With a radius 1.8 times that of Earth, TOI-1846b could be rich in water, shedding light on the mysteries of planet formation.