# Researchers discover why constipation is so common in astronauts

> **Open Intelligence Dossier** · First detected: 2026-08-31 05:07 UTC · Category: Science

## Executive Summary
New research reveals the causes of astronaut constipation while a NASA study warns that human microbes may survive in the Moon's deep shadows.

## Intelligence Brief
Recent scientific findings have addressed a long-standing physiological challenge for space travelers. According to reports from NewsNation, IFLScience, and Наша Ніва, researchers have discovered the reasons why constipation is a common occurrence among astronauts and cosmonauts. The coverage indicates that this struggle is tied to the effects of microgravity, which creates a hidden health risk for those operating in space. This discovery provides a biological explanation for why individuals suffer from these digestive issues while stationed outside of Earth's gravitational pull. Simultaneously, a separate NASA study is examining the persistence of Earth-based microbes on the lunar surface.


Coverage from ndtv.com, Universe Today, and SciTechDaily emphasizes that these microbes could potentially survive at the Moon's south pole, specifically hiding within deep shadows. Science News further notes that some of these microbes might become freeze-dried in that environment. These reports highlight a growing concern regarding the contamination of lunar environments by biological materials transported from Earth during previous missions. Context for the lunar research is provided by spacedaily.com, which notes that across six Apollo landings, astronauts left 96 waste bags and containers on the Moon. These materials have been exposed to lunar radiation and vacuum conditions for up to 57 years.


Researchers have now proposed retrieving one of these containers. The objective of this retrieval is not environmental cleanup, but rather a scientific effort to determine if any human microbes have survived the harsh lunar conditions over the several decades since they were deposited. Future developments will likely center on the results of the proposed retrieval mission and the practical application of the constipation research. While the coverage from NewsNation and IFLScience establishes that the cause of the digestive issues is now understood, it does not specify the exact medical interventions that will follow. Observers will be watching to see if NASA moves forward with the recovery of the Apollo-era waste bags to confirm the survival rates of microbes in the deep shadows of the south pole.

## Multi-Source Evidence Table
| Source Outlet | Headline | Verification URL |
|---|---|---|
| ndtv.com | Earth Microbes May Survive On Moon's South Pole, NASA Study Finds | [Source Link](https://news.google.com/rss/articles/CBMiowFBVV95cUxQRXBQaFVZS0x2UmJqbDJJa1hCOU1jV2dSa21zYThST2x0dVFtSFVGNFF2dzNJTHJfdXRlNFhOZUUxcFdIcnJNeGlwa1g2R2JjYVQxc1kwTmlSV3B1OXdxbDZQc3hLUXlPZ0JTbEFXYXh0ZnBNbDVaVXJJYVdmXy1YX282NWVVaU9TZVJQSkY3M1Jzc0tjVTcwMkZ4ODNoNk9VeHE00gGrAUFVX3lxTE1mMjVxVm5qQ2J1ZkZvUXdLSkNnM2VDV0U5RzBYR2s4c194VGdIbS1tRk5oQnhvdjJpWW9jazZqQ2lZcDVFWXRHWEk2TnFSaWpZbWZ6SGRDXzlkQnhnTktyV1ExLUFxaUREN1g3ZTdDWUZvUUNxQ09YNnJFallCcG8yN2t3MzFpcmVqXzR6b3lLY2ttS1VWVUJONzdIRFBpcy0wWjVWQzM3Wk9KQQ?oc=5) |
| Universe Today | Astronaut Microbes Might Survive at Moon's Pole, NASA Warns | [Source Link](https://news.google.com/rss/articles/CBMinAFBVV95cUxNcER4UXZ4dVprUW1RbXJ3a3lScHBhS0RyRS12QmpWSFNNZlpoQ2Ztdk91WkNtU3RVd1VvV016bDBJczZBSXdlcUN0aXk0RVhkLV9uMkdmQ2JGZFRpRXY4ZUV3RG1EVkh3QS1fbUE2RGd6SFhueFVSVzF2VXktYVVrSGgteU9uZUl4Vzg4OVJNR0kxUm9YRFlnY3pRV1c?oc=5) |
| SciTechDaily | NASA Finds Earth Microbes Could Hide in the Moon’s Deep Shadows | [Source Link](https://news.google.com/rss/articles/CBMikgFBVV95cUxOdGJvTHFTX1BHbzkxVXN1bDFfd05WZmJqSEE4MkdkMjNFS2hMQTFsenhIOTRVRG8zRzhJRm5icnVNcGdCaGV3cGJsY2JFQWdodENkYkhnQjQ1UnhFbGZSQjFSY2ZCNzdqLXh1QlVHenRxOEUtdDExTFo3UWNoM0ZGdmotdnM4dmxvVGdGcGpJMGtiUQ?oc=5) |
| Science News | Microbes might get freeze-dried on the moon’s south pole | [Source Link](https://news.google.com/rss/articles/CBMif0FVX3lxTE9oaHNGamdsUEE4ZUVna1pYZXVvMzJQOFhpREM0OFhpM2U3anp1WDdCNDVXTkJWZTdLMmVUSl9RclJ3T29qZWRzNy1KTjhSOVpIdldPZm13eE5EbW0yNFJTanB4bk55Y2dRZ1NMaXNiYlVXZTY0Qm9oQ2M3UG02Rlk?oc=5) |
| spacedaily.com | Across six Apollo landings, astronauts left a commonly cited 96 waste bags and containers on the Moon. Researchers have proposed retrieving one—not to clean up, but to discover whether any human microbes survived up to 57 years of lunar radiation, vacu | [Source Link](https://news.google.com/rss/articles/CBMihgFBVV95cUxQV3pBN05fQjdnRk5sTHVHSXhjM3dLSkY2ZTR4X0RRX1J2eFZvQUtSQW5qbzQxRjZVRktvaUFPaVNJcHQ2akRzczg2b1J4LUhWaWN2SXB0VnRydGI4d0w5WTdfa0QwWEF5ZkRITDZMVFdRSHl0d0FnREVyNEhvX2NhalNkdHdCZw?oc=5) |
| The Times of India | Scientists discover why astronauts struggle to poop in space, revealing how microgravity creates a hidden health risk | [Source Link](https://news.google.com/rss/articles/CBMilAJBVV95cUxNR0Myc29JTEhhVEs4QUJRN3pKZXlST2N4TUhuY1FJOS1HYVFpRXhydUVYRTlyMll5OC1ONzV5YkV2dEdXb1FRT2VDR1BKREZBZHlMVzU5RWtLOFFOU0xvMnQ3dk9RcHdYUmdLT3Utc24yUVpZMzRMdU1mZlMzaFo3cFR4ZWVEUnlkMXp0WmpkalZuTUNQUjFvSHJrWTlBS1ZJbXJaVzc2WU5aaGE5SWZVdlhUMW00bXNCeFFZNmhDSWRMZnREdTh4ZWlLcWYwbWNQX0V3T3ozUHlGX19Ua0Rwckhqc3c0Vkg5SjVJTkZZSkgyU3prMDRRaFhONWJIMkdXa2hoVm1oajZFX0pydF9xNXQ2Sk0?oc=5) |
| IFLScience | Astronauts And Cosmonauts Have A Pooping Problem In Microgravity, And New Research May Have Figured Out Why | [Source Link](https://news.google.com/rss/articles/CBMi1gFBVV95cUxPaV84dTloTDdpVmI1MUgzdDdCajE1V3dVYkNOc1dkRU1mdDlEczBfRU9OQnpLbXNQd293Y2lpczZhUjZIV20xUnlKLVJ5Ymx4ZC1nV2JTcEtSbGJzU3VmM2hUT1M2Vm9vVlpUbnd1ZzR1RmNOalY1MS1nUml4RTZKdXVvTDFIV2cza2xrOHZ1NjdjeDVxYkpYTDNaNHFyTEZmU0trdXlfc21fcnYzX2JOT0Rsc1lBc3lONHVRcEJGNlRWOTRRckl4cERFZ1c2dlE2TDFZUndn?oc=5) |
| Наша Ніва | Scientists Finally Figured Out Why Astronauts Suffer from Constipation | [Source Link](https://news.google.com/rss/articles/CBMiRkFVX3lxTFBYYXk4M2czQ2VsU19PYXhWNGVObmM0eXEwUDFaMS1Gb0FFQWwwYXFaUFdZLVVmeXlkQ1ViaFVWdU4zM1pLaWfSAUtBVV95cUxQYjVkS1NKVVRnazAtQUQ3SWV1NG94bXBrQmozLUswNW5ZVGQ2SXFDVHVGUzREV0c0WVNqSDhZT0ZKengzUF9vUFdGTTQ?oc=5) |
| NewsNation | Researchers discover why constipation is so common in astronauts | [Source Link](https://news.google.com/rss/articles/CBMihAFBVV95cUxPRDJXQW5fTll1NG1YT0ZWeElBZjBTR2YyVlVuOE0yUHZFQ3hvYl9BRmdNM2djdVhUcUFIQjk2MV9Sc3U0RkVlZm9hM1JDb0lBNzZmcHNVbzN4dVRSN1VJLWpjOTFSRko1R1NySUtNSVVsZnRLOGJGY1JncGhURXRWbW1jUGjSAYoBQVVfeXFMT0NrMy12SEM2QVJXdTkxSzFtbGFfTW5LSXRNUy1ucWZuRVVSZmxtWnNfTDhtZVhERV9OMlNSNzlhb0trQzhRYmtDMUozQmZWRm5pWWdjNHhwVHZCZmxNRGFhQnlnaEJZUmQ1YjBSdGZod2ItQ1VlV3hjanRUbkdsdGlrU3dFQ1NiNVVn?oc=5) |

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*Canonical Source: https://pulse.byoviral.com/trend/2026-08-31/researchers-discover-why-constipation-is-so-common-in-astronauts*