On May 14, the National Oceanic and Atmospheric Administration (NOAA) ship Okeanos Explorer will depart from Port Canaveral in Florida on a two-week expedition led by NOAA Ocean Exploration, featuring […]
Water/Hycean Worlds & Oceanography
Posted inWater/Hycean Worlds & Oceanography
New Indicator For Oxygen levels In Early Oceans Developed
Oxygen is essential for the development of higher life. However, it was hardly present in the oceans of the young Earth. It was not until the evolution of photosynthetic bacteria […]
Posted inPress Release, Robotics/Rovers/UAVs, ROVs/Submersibles/Diving, Water/Hycean Worlds & Oceanography
Ocean Bacteria Release Carbon Into The Atmosphere
A team led by University of Minnesota researchers has discovered that deep-sea bacteria dissolve carbon-containing rocks, releasing excess carbon into the ocean and atmosphere. The findings will allow scientists to […]
Posted inAstrobiology (general), Book, Film, Video Reviews, Icy Worlds, Press Release, Water/Hycean Worlds & Oceanography
Book Review: "Alien Oceans: The Search For Life In The Depths Of Space" by Kevin Hand
In Kevin Hand’s “Alien Oceans: The Search For Life In The Depths Of Space” we learn that Earth is just one example of a myriad ways that a world can […]
Posted inAnalog Studies, Arctic / Antarctic / Alpine, Away Teams & Field Reports, Biosignatures & Paleobiology, Cryobiology, Dale Andersen's Field Reports, Education and Outreach, Exploration Gear & Tech, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, ROVs/Submersibles/Diving, Status Report, Video, Audio, Webcasts, Podcasts, Water/Hycean Worlds & Oceanography
Video: Drone Footage Of Lake Untersee, Antarctica
Dale Andersen: A quick video tour of Lake Untersee using drone footage I captured including views of our camp, a drive across the lake from our camp to the pressure […]
Posted inAstrogeology, Atmospheres, Climate, Weather, Extinction events, Press Release, Water/Hycean Worlds & Oceanography
Volcanic Eruptions Directly Triggered Ocean Acidification During The Early Cretaceous
Around 120 million years ago, the earth experienced an extreme environmental disruption that choked oxygen from its oceans. Known as oceanic anoxic event (OAE) 1a, the oxygen-deprived water led to […]
Posted inExtremeophiles and Extreme Environments, Icy Worlds, Press Release, ROVs/Submersibles/Diving, Water/Hycean Worlds & Oceanography
Oceans Without Oxygen
With no dissolved oxygen to sustain animals or plants, ocean anoxic zones are areas where only microbes suited to the environment can live. “You don’t get big fish,” said UC […]
Posted inWater/Hycean Worlds & Oceanography
Influence Of A Galactic Gamma-Ray Burst On Ocean Plankton
The hypothesis that one or more biodiversity drops in the Phanerozoic eon, evident in the geological record, might have been caused by the most powerful kind of stellar explosion so […]
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Gaia - Planetary Perspectives, Habitable Zones, Imaging & Spectroscopy, Status Report, Water/Hycean Worlds & Oceanography
The Occurrence of Rocky Habitable Zone Planets Around Solar-Like Stars from Kepler Data
We present occurrence rates for rocky planets in the habitable zones (HZ) of main-sequence dwarf stars based on the Kepler DR25 planet candidate catalog and Gaia-based stellar properties.
Posted inWater/Hycean Worlds & Oceanography
Microbial Diversity Below The Seafloor Is As Rich As On Earth's Surface
For the first time, researchers have mapped the biological diversity of marine sediment, one of Earth’s largest global biomes. Although marine sediment covers 70% of the Earth’s surface, little was […]