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Edition #21 · Tuesday, May 12, 2026 · 1195 positive stories
Science & Breakthroughs

New model finds the lower size limit for habitable exoplanets

Phys.org Latest Mon, 11 Ma
New model finds the lower size limit for habitable exoplanets

The search for Earth 2.0 has begun in earnest. But there's a huge variety of exoplanets out there, so narrowing down the search to focus valuable telescope time on only the best candidates is critical. One variable of a planet that will have a huge impact on its habitability is its size. A new paper, now available in preprint on arXiv, by researchers at the University of California Riverside, looks into the impact of a planet's size on one of its more critical features for habitability—whether i

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About Science & Breakthroughs coverage

The science section covers breakthroughs in medicine, physics, biology, and technology. We surface discoveries that expand what humanity can do, from new treatments reaching clinical trials to engineering feats that seemed impossible a decade ago. Every link goes to the original publisher so you can read the full study or press release yourself.

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The three muscle groups behind knee stability, and how to train them
Optimist Daily
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BY THE OPTIMIST DAILY EDITORIAL TEAM Running, climbing stairs, squatting to pick something up from the floor: every one …

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