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Scientists Urge Space Agencies to Set Reproductive Health Standards

An international team highlights reproductive risks in spaceflight and calls for ethical guidelines as longer missions and commercial space tourism increase, with data gaps noted by NASA experts.

  • On Tuesday, the nine authors of the study published in Reproductive BioMedicine Online argue human reproductive health beyond Earth is `urgently practical` as missions lengthen.
  • Commercial spaceflight growth is widening access to space, as suborbital 'joyrides' and longer private missions increase civilians spending extended time off Earth.
  • Radiation and microgravity are identified as major reproductive hazards, with animal model studies showing disrupted menstrual cycles, damaged eggs, abnormal embryo division and sperm DNA damage.
  • Authors urge establishment of industry-wide standards and collaboration, highlighting no accepted rules for reproductive risks among professional and private astronauts and calling for international collaboration, a comprehensive framework and a collective industry ethics review board.
  • Giles Palmer says `IVF technologies in space are no longer purely speculative`, with assisted reproductive technologies mature and portable; intimacy challenges include the `elastic harness`, while NASA supports egg or ovarian tissue freezing.
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The work, published in the journal Reproductive Biomedicine Online, was carried out by experts in reproductive health, aerospace medicine and bioethics...

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Phys.org broke the news in United Kingdom on Wednesday, February 4, 2026.
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