Tag

Hydrothermal Vents

All articles tagged with #hydrothermal vents

space1 day ago•10 min saved

Enceladus’ plumes reveal a hydrogen-powered hidden ocean

Saturn’s moon Enceladus vents a subsurface ocean through its south-pole tiger stripes, and Cassini measurements show hydrogen in the plume, likely produced by water-rock reactions in the ocean (serpentinisation) that energy-hungry microbes could exploit as in Earth's hydrothermal vents. New analyses find a broader suite of organic compounds and phosphates in plume grains, bringing five of the six bio-essential elements to the scene, but no life is detected and sulfur remains elusive. The results strengthen the case for habitability and set the stage for a future mission to search for signs of biology rather than a new discovery of life itself.

via Space Daily|

#enceladus #hydrogen #hydrothermal-vents

science2 days ago•4 min saved

Atlantic Doldrums Reveal First Hydrothermal Vents, Stoking Awe for Deep-Sea Life

Researchers using the ROV SuBastian uncovered two hydrothermal vent fields in the Doldrums Megatransform and Fracture Zone off Brazil, including a 24‑acre area with 23 vents and 13 active black smokers at about 280°C. The vents host life from anemones to Rimicaris shrimp, powered by chemical energy from vent fluids. The discovery, aided by serpentinisation, shows the Atlantic’s deep ecosystems are more diverse than thought and could offer clues about life on other worlds.

via BBC Wildlife Magazine|

#deep-sea #doldrums-megatransform #hydrothermal-vents

science3 days ago•5 min saved

Japan Seafloor Gold Hits Record Levels, Sparking Deep-Sea Mining Debate

Researchers analyzing Higashi-Aogashima hydrothermal vents off Japan found extremely high concentrations of gold trapped inside pyrite nanoparticles, the highest ever recorded, suggesting a potential new source for underwater mining but also raising environmental and feasibility concerns; the findings, published in Scientific Reports, come amid ongoing debate and moratoriums on deep-sea mining, with no commercial mine in operation yet.

via ScienceAlert|

#deep-sea-mining #gold #hydrothermal-vents

science3 days ago•5 min saved

Remote Atlantic Abyss Reveals Hidden Vents and Rare Deep-Sea Life

Scientists spent 35 days mapping a remote Atlantic region along the Mid-Atlantic Ridge, discovering two new hydrothermal vent fields about 4,000 meters deep and documenting vent-dwelling communities. The mission captured first live footage of a barreleye in its natural habitat, plus an isopod carrying sunken seaweed and the deepest-dwelling bigfin squid, highlighting chemosynthesis-based ecosystems that could inform the search for life on other worlds.

via PetaPixel|

#barreleye #bigfin-squid #deep-sea

science3 days ago•6 min saved

Atlantic Deep Reveals First In-Situ Footage of Rare Barreleye and Serpentinization Vents

Researchers using the ROV SuBastian and AUV The Childlike Empress aboard the Falkor captured the first in-situ footage of the twilight-zone barreleye Winteria telescopa at 710 m depth in the Atlantic's Doldrums region, and documented two new serpentinization-linked hydrothermal fields around 4,000 m, revealing active deep-sea life and offering clues about life in extreme environments and on other worlds; findings to be published.

via ScienceAlert|

#barreleye #deep-sea-exploration #hydrothermal-vents

science1 month ago•19 min saved

Hidden Cities of the Deep: life around vents and the race to mine the ocean floor

A sweeping look at Earth’s deep ocean—from twilight mid-water zones to hydrothermal vents—reveals an enormous, little-understood ecosystem that fuels global climate and hosts bizarre life forms powered by chemical energy. It traces a century of exploration (Challenger, Alvin) and explains how mid-water migrations drive major carbon transport, while warning that growing seabed‑mining interests, especially for manganese nodules in the Clarion–Clipperton Zone, threaten fragile, slow‑growing communities and untapped biotechnologies. The piece argues for protecting these environments even as they hold clues to life’s origins and future innovations.

via The Guardian|

#biodiversity #carbon-cycle #deep-sea

science1 month ago•6 min saved

Robot Discovers Thriving Deep-Sea Life Nearly 5,000 Meters Deep in Cayman Trough

An ROV exploring the Beebe Vent Field at the Mid-Cayman Spreading Centre nearly 5,000 meters below the sea uncovered a thriving hydrothermal-vent ecosystem around black-smoker chimneys. Vent fluids can reach around 401°C, but surrounding water stays cool enough to support life because of the immense pressure; energy comes from chemosynthesis instead of sunlight, sustaining organisms such as eelpouts, anemones, squat lobsters, and eyeless shrimp with dorsal light-sensing organs. This discovery highlights life’s resilience in extreme, sunless environments.

via Indian Defence Review|

#beebe-vent-field #cayman-trough #chemosynthesis

science2 months ago•5 min saved

Rare Molybdenum Fueled Earth's Earliest Life, New Study Finds

New research shows molybdenum, a scarce metal in early Earth's oceans, was crucial for the metabolism of the planet's earliest life forms, dating back to about 3.7–3.1 billion years ago; the study suggests both molybdenum- and tungsten-using enzymes were present early, likely supported by hydrothermal vent systems, and it reframes how we think about life's requirements and the search for life beyond Earth.

via The Daily Galaxy|

#archean #early-life #enzymes

science2 months ago•3 min saved

Life Persists in 400°C Black Smokers at Beebe Vent Field, the Ocean’s Deepest Vents

A deep-sea ROV explored the Cayman Trough and found the Beebe Vent Field, the deepest hydrothermal vents at about 4,968 meters. The vents spew near-boiling fluids that remain liquid under high pressure; life thrives via chemosynthesis, with organisms like eelpout fish, anemones, squat lobsters, and shrimp with light-sensing organs inhabiting the black-smoker environment.

via BBC Wildlife Magazine|

#beebe-vent-field #chemosynthesis #deep-sea

environment2 months ago•15 min saved

Deep-sea biodiversity warns against rushing seafloor mining

An analysis by Andrew D. Thaler argues that the highly interconnected and fragile ecosystems around hydrothermal vents (exemplified by Solwara I off Papua New Guinea) are unlikely to withstand mining, and that even optimistic scenarios would cause unacceptable harm. The piece notes the Solwara I project failed and PNG’s moratorium on deep-sea mining, while highlighting a renewed U.S. push to permit seabed mining. It cautions that ongoing discovery of new deep-sea life would be jeopardized by premature exploitation, urging cautious governance and more study before rushing to mine the deep ocean.

via Mongabay|

#biodiversity #conservation #deep-sea-mining

science-and-technology3 months ago•4 min saved

Volcanic Warmth Creates Hidden Nursery for Giant Deep-Sea Skate Eggs

Scientists discovered large rectangular eggs of the Pacific white skate at about 3,500 meters beneath an active seafloor volcano off Vancouver Island. The geothermally heated water provides a gentle incubator that can accelerate embryo development in the cold, high-pressure deep sea, potentially shaving years from the lengthy incubation. The finding links volcanism to biodiversity, highlighting conservation needs for geothermal nurseries and offering new questions about how vent activity shapes reproductive success. Researchers used ROVs, high-def imagery, temperature readings, and geochemical data to map the thermal landscape where eggs cluster.

via Iowa Park Leader|

#biodiversity #deep-sea #embryology

science3 months ago•3 min saved

Ocean-floor nitrogen chemistry may have seeded life’s origins

New evidence from deep-sea rock cores near hydrothermal vents shows minerals can drive abiotic nitrogen reduction, producing ammonium and other nutrients that could fuel early life and help explain how a warmer, gas-rich early Earth maintained liquid water despite a fainter Sun.

via SciTechDaily|

#abiotic-nitrogen-reduction #early-earths-climate #hydrothermal-vents

environment4 months ago•18 min saved

Antarctic Earthquakes Trigger Rapid Surface Phytoplankton Blooms

New research links underwater earthquakes near the Australian Antarctic Ridge to boosted surface phytoplankton blooms by enhancing iron release from hydrothermal vents, speeding nutrient delivery to the surface and cascading through the Southern Ocean food web, with potential implications for ocean carbon uptake and climate models. The study combines decades of satellite data with seismic records and points to a surprising, faster-than-expected pathway from deep-sea fluids to surface life.

via Earth.com|

#antarctica #earthquakes #environment

science6 months ago•7 min saved

Europa's Seafloor Shows Little Activity, Reducing Life Prospects

A new study suggests that Europa's ocean floor likely lacks significant tectonic activity and hydrothermal vents, reducing its chances for supporting life, though other energy sources might still exist. The findings imply that Europa may be less hospitable for life than previously thought, but the search continues with upcoming missions like NASA's Europa Clipper.

via Space|

#europa #hydrothermal-vents #life-potential

science8 months ago•6 min saved

Deep Sea Reveals New 'Death Ball' Sponge and Other Strange Creatures

A 2025 deep-sea expedition in the Southern Ocean discovered 30 new species, including a carnivorous sponge, armored worms, and a juvenile colossal squid, highlighting the vast, largely undocumented biodiversity of the ocean's depths and emphasizing the urgency of conservation efforts amid ongoing threats to marine life.

via Mongabay|

#deep-sea-exploration #hydrothermal-vents #marine-biodiversity