All articles tagged with #tardigrades
NASA sent hydrated tardigrades (Hypsibius exemplaris) to the International Space Station in 2021, cultured them for multiple generations in the Bioculture System, and tracked gene expression to see how spaceflight affects survival strategies and whether those traits are heritable, with implications for long-duration missions.
Scientists analyzing water pumped from the Antrim Shale gas field uncovered a surprisingly rich subterranean ecosystem, including 689 fungal species (13 potentially new), rotifers, worms, tardigrades and other organisms. Fungi from classes Agaricomycetes and Dothideomycetes appear to metabolize hard-to-digest carbon, suggesting a significant role in subsurface carbon cycling. The oxygen conditions are unclear due to sampling methods, but the community has likely been isolated for millennia since the Late Pleistocene. Human extraction and biocides threaten these habitats, highlighting their biodiversity and potential impact on carbon storage models.
A University of Michigan study of water brought up from the Antrim Shale beneath Michigan found surprisingly rich life in deep underground groundwater: one drop contained about 250 fungal cells and 689 fungal species (13 new), plus tardigrades (water bears) and tiny segmented worms, indicating an active underground food web and potential importance for Earth's carbon cycle. Isotope data suggest the ancient water last contacted surface about 11,000 years ago, and researchers are cultivating deep-subsurface fungi and developing tools to study these hidden ecosystems further.
Researchers drilling into the Antrim Shale beneath the Great Lakes found a vibrant underground ecosystem: 689 fungal species (including 13 new ones) alongside tardigrades and worms, forming a subterranean food web fed by ancient organic matter. Isotopic dating links the water to the Ice Age, last in contact with surface about 11,000 years ago, suggesting deep subsurface biodiversity may be underestimated and could influence carbon cycling.
Tardigrades endure boiling, freezing, vacuum, and high radiation by drying into a glass-like tun that halts metabolism. This cryptobiosis is enabled by tardigrade-specific proteins (TDPs) that form a protective amorphous solid and the Dsup protein that shields DNA from radiation. They’ve been revived after years and even sent to space (ISS), with ongoing studies aiming to apply these mechanisms for radioprotection and dry, room-temperature biomedical storage, though translating to humans remains far off.
Researchers exposed tardigrades to two Martian regolith simulants (MGS-1 and OUCM-1). MGS-1 caused notable stress and rapid dormancy, while OUCM-1 was less harmful. Washing the simulant reduced toxicity, indicating a water-soluble component—likely salts—drives the harm. The results suggest Mars’ soil chemistry could help prevent Earth microbes from contaminating the planet (a planetary-protection bonus), while also implying that treating regolith could eventually support plant growth on Mars.
Space-biologist researchers exposed tardigrades to Mars-regolith simulants (MGS-1 and OUCM-1). In MGS-1, tardigrades entered dormancy within two days, suggesting a toxic component that could be washed away—washing improved tardigrade resilience and made regolith more hospitable for growth, while OUCM-1 remained inhibitory but less so. The work implies Mars’ soil may defend against Earth microbes, aiding planetary protection, and that washed regolith could potentially be turned into crop‑soil for future missions. The findings were published in December 2025 in the International Journal of Astrobiology.
In lab-made Martian soils (MGS-1 and OUCM-1), tardigrades showed reduced activity in MGS-1 and remained reasonably active in OUCM-1; a simple water rinse of MGS-1 restored vigor, suggesting some regolith components harm organisms but can be washed away. The study informs planetary-protection considerations and Mars-exploration planning, but results rely on simulations and further work under Mars-like pressure/temperature is needed.
Two tardigrade species were placed in Mars regolith simulants (MGS-1 and OUCM-1) and in Earth sand as a control. In the regolith, tardigrades died off quickly, especially Hypsibius exemplaris, while Ramazzottius cf. varieornatus fared somewhat better but still declined. When the simulant was rinsed with water, tardigrades survived longer and remained active, suggesting a water-soluble, damaging component in MGS-1. The finding could inform future Mars agriculture and planetary protection, though researchers did not test radiation, temperature, or other environmental factors, and the exact cause remains to be identified. The study was published in the International Journal of Astrobiology.
New experiments show two lichen species, Diploschistes muscorum and Cetraria aculeata, can survive Martian-radiation levels in a vacuum chamber, suggesting some Earth extremophiles might endure Mars-like conditions for future missions; however, liquid water remains a major hurdle, while tardigrades and mosses are also highlighted as potential testers for long-term space exploration.
Scientists have discovered a protein called Dsup in tardigrades that protects DNA from damage, inspiring potential medical and technological applications such as cancer therapy, organ protection during strokes, crop resilience, space exploration, and data storage. Early studies show promise in using Dsup to enhance human cell resilience and protect against radiation and oxidative stress, with ongoing research to fully understand its mechanisms.
Tardigrades, tiny resilient creatures capable of surviving extreme conditions like space, radiation, and desiccation, are being studied for potential human applications such as protecting against radiation damage, preserving medicines, and aiding space exploration. Their survival mechanisms include specialized proteins and entering a state of suspended animation, offering insights into extreme resilience and biotechnological innovations.
Tardigrades, tiny resilient animals, possess unique proteins like Dsup that protect their DNA from extreme radiation and environmental stresses, making them promising models for enhancing human space travel safety and developing resilient crops and medical supplies. Their ability to survive harsh conditions could inform future Mars colonization efforts and biotechnological applications on Earth.
A 2019 failed lunar landing by Israel's Beresheet spacecraft left behind a capsule containing tardigrades and human cells on the Moon. Given tardigrades' extreme resilience, there's a possibility they could survive on the lunar surface and potentially be revived if recovered, though this remains highly uncertain and technically challenging.
The article explores extraordinary creatures like extremophiles, tardigrades, and deep-sea species that survive in extreme environments on Earth, highlighting their resilience and the impact of human pollution, such as plastic, on these ecosystems, while emphasizing the enduring nature of life.