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TOI-789 c

TOI-789 c is a super Earth exoplanet that orbits a -type star. Its mass is 3 Earths, it takes 8 days to complete one orbit of its star, and is 0.056 AU from its star.

TOI-789 d

TOI-789 d is a super Earth exoplanet that orbits a -type star. Its mass is 6.6 Earths, it takes 13 days to complete one orbit of its star, and is 0.077 AU from its star.

TOI-789 b

TOI-789 b is a super Earth exoplanet that orbits a -type star. Its mass is 3.7 Earths, it takes 5.4 days to complete one orbit of its star, and is 0.043 AU from its star.

Rule gives every generation same share of its best attainable welfare

Sharing a finite resource across generations requires a balance between today's needs and the claims of those yet to be born. Research by Prof. Thomas A. Weber, presented at the 2026 European Control Conference in Reykjavík, proposes a fair allocation rule that gives every generation the same fraction of its best attainable welfare.

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