blood falls Archives - Astrobiology

Location of TYLG Global Positioning System (GPS) station (yellow), the in-lake thermistor string (blue) and the time-lapse camera (red). Iron oxide staining of the ice surface from Blood Falls is observable south of the Blood Falls camera. Base imagery: Sentinel−2, 10 m resolution (acquired 18 November 2019), Copernicus/ESA.

Analog Studies, Arctic / Antarctic / Alpine, Away Teams & Field Reports, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Cryobiology, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Status Report

Ice Planet Recon: Glacier Surface Lowering And Subglacial Outflow Coincide With Blood Falls Discharge In The McMurdo Dry Valleys

by Keith CowingFebruary 23, 2026February 23, 2026

Blood Falls is a unique feature that appears at the snout of the Taylor Glacier in the upper Taylor Valley, East Antarctica.

Blood Falls seeps from the end of the Taylor Glacier into Lake Bonney. The tent at left provides a sense of scale for just how big the phenomenon is. Scientists believe a buried saltwater reservoir is partly responsible for the discoloration, which is a form of reduced iron. — by Peter Rejcek National Science Foundation via Wikipedia

Analog Studies, Arctic / Antarctic / Alpine, Away Teams & Field Reports, Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Cryobiology, Exploration Gear & Tech, Extremeophiles and Extreme Environments, Habitable Zones, Icy Worlds, Mars, Microbiology & Virology, Origin & Evolution of Life, Polar / Alpine Expeditions, Press Release, Sample Return

Multi-technique Characterization Of Iron Reduction By An Antarctic Shewanella: An Analog System For Putative Martian Biosignature Identification

by Keith CowingOctober 6, 2025October 6, 2025

Microbes from terrestrial extreme environments enable testing of biosignature production in conditions relevant to astrobiological targets.

Blood Falls, Antarctica, where microbes live under the ice. Iron and other elements from the bedrock below the ice become oxidized when it interacts with air, producing the rusty red coloring. Source: Jill Mikucki

Analog Studies, Arctic / Antarctic / Alpine, Astrobiology (general), Away Teams & Field Reports, Biosignatures & Paleobiology, Cryobiology, Europa, Exploration Gear & Tech, Extremeophiles and Extreme Environments, Habitable Zones, Icy Worlds, Microbiology & Virology, Origin & Evolution of Life, Press Release, Water/Hycean Worlds & Oceanography

Subglacial Microbial Life On Earth And Beyond

by Keith CowingFebruary 23, 2024February 23, 2024

The search for life beyond Earth fascinates many and inspires big questions: Are we truly alone in the Universe? Is our Earth unique? Is it possible that life beyond Earth […]

Blood Falls seeps from the end of the Taylor Glacier into Lake Bonney. The tent at left provides a sense of scale for just how big the phenomenon is. Scientists believe a buried saltwater reservoir is partly responsible for the discoloration, which is a form of reduced iron. -- by Peter Rejcek via Wikipedia

Analog Studies, Arctic / Antarctic / Alpine, Enceladus, Europa, Icy Worlds, Planetary Protection & Biosafety, Status Report, Water/Hycean Worlds & Oceanography

Field-Based Planetary Protection Operations for Melt Probes: Validation of Clean Access into the Blood Falls, Antarctica, Englacial Ecosystem

by Keith CowingNovember 19, 2023November 19, 2023

Subglacial environments on Earth offer important analogs to Ocean World targets in our solar system. These unique microbial ecosystems remain understudied due to the challenges of access through thick glacial […]

Arctic / Antarctic / Alpine, Cryobiology, Extremeophiles and Extreme Environments

Exploring Below Antarctica's Blood Falls

by Keith CowingMarch 27, 2014

Microbiologist Jill Mikucki first saw a photo of Blood Falls during a class for her master’s degree at Portland State University. It immediately captivated her. Fast-forward about a dozen years. […]

Blood Falls seeps from the end of the Taylor Glacier into Lake Bonney. The tent at left provides a sense of scale for just how big the phenomenon is. Scientists believe a buried saltwater reservoir is partly responsible for the discoloration, which is a form of reduced iron. -- by Peter Rejcek via Wikipedia

Analog Studies, Arctic / Antarctic / Alpine, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Cryobiology, Extremeophiles and Extreme Environments, Fossils & Paleontology, Microbiology & Virology

Blood Falls Becomes First Subglacial Antarctic Specially Protected Area to Protect Scientific Values

by Keith CowingMay 24, 2013April 13, 2024

Blood Falls, one of the more bizarre features found anywhere in Antarctica, has fascinated scientists since it was first discovered a century ago by Griffith Taylor, the senior geologist on […]