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Edition #184 · Thursday, October 22, 2026 · 3023 positive stories
Science & Breakthroughs

Astronauts’ hearts just passed a surprising test for Mars

ScienceDaily Top News 2026-10-21
Astronauts’ hearts just passed a surprising test for Mars

New research on 13 astronauts suggests that their hearts can adapt well to space travel and even a Martian environment. The study found that regular exercise during weightlessness helped the astronauts' hearts handle simulated gravity without major issues. The findings offer promising results for future Mars missions.

Why it's good news: It raises hopes for successful human exploration of Mars in the future.

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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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