Terrestrial Technosignatures: Satellites Capture The Glowing Pulse Of Human Civilization
astrobiology.com/2026/04/terr... #astrobiology #SETI #biosignature

Designing Lightweight Optics To Detect Signs Of Life Beyond Our Solar System - Astrobiology UC Santa Barbara doctoral candidate in physics, Skyler Palatnick, PhD ’26, has been named to Heising-Simons Foundation’s Science program’s new class of 51 Pegasi b Fellows

Designing Lightweight Optics To Detect Signs Of Life Beyond Our Solar System
astrobiology.com/2026/04/desi... #astrobiology #astronomy #exoplanet #biosignature

Spectacular Fossil Treasure Trove Pushes Back Origins Of Complex Animals - Astrobiology A newly discovered fossil site in southwest China has transformed our understanding of how complex animal life emerged on Earth

Spectacular Fossil Treasure Trove Pushes Back Origins Of Complex Animals
astrobiology.com/2026/04/spec... #astrobiology #fossil #biosignature #paleontology

European Astrobiology Institute Summer School in Biosignatures and the Search For Life on Mars The European Astrobiology Institute (EAI) Summer School, titled “Biosignatures and the Search For Life on Mars (and other planets)”, is scheduled for June 18–26, 2026, in Iceland. The program focuses ...

European Astrobiology Institute | Summer School in Biosignatures and the Search For Life on Mars

Application deadline: April 15

#School #Astrobiology #ALife #Biosignature #Mars ./10

www.complexitycat.org/posts/EAI-su...

Serendipitous Discovery Of Martian Ripple Marks Reveals An Ancient Sandstorm - Astrobiology The search for life on Mars involves the efforts of scientists from many different disciplines

Serendipitous Discovery Of Martian Ripple Marks Reveals An Ancient Sandstorm
astrobiology.com/2026/04/sere... #astrobiology #Mars #biosignature

Redox Chemistry Of Early Earth And The Origin Of Life - Astrobiology Multiple controversial scenarios have been proposed explaining the emergence of life, both from environmental and chemical perspectives.

Redox Chemistry Of Early Earth And The Origin Of Life
astrobiology.com/2026/04/redo... #astrobiology #biosignature #biochemistry

Organosulfur Chemistry On sub-Neptunes: Implications For Hazes And Biosignatures - Astrobiology The organosulfur biosignature gases dimethylsulfide (DMS) and dimethlydisulfide (DMDS)

Organosulfur Chemistry On sub-Neptunes: Implications For Hazes And Biosignatures
astrobiology.com/2026/03/orga... #astrobiology #astrochemistry #Biosignature

Proton Irradiation of Primitive Atmospheres of Young Exoplanets And Early Earth: N2O Greenhouse Warming And Prebiotic Synthesis - Astrobiology The emergence of habitable conditions on the early Earth and on rocky exoplanets requires persistent energy sources that can drive both prebiotic chemistry and climate warming under magnetically activ...

Proton Irradiation of Primitive Atmospheres of Young Exoplanets And Early Earth: N2O Greenhouse Warming And Prebiotic Synthesis
astrobiology.com/2026/03/prot... #astrobiology #Biosignature

Alien Biosignature An alien biosignature is any observable feature—such as a substance, pattern, or phenomenon—that provides scientific evidence of past or present life beyond Earth. Scientists look for these "fingerpri...

#KnowledgeByte: An #Alien #Biosignature is any observable feature—such as a substance, pattern, or phenomenon—that provides scientific evidence of past or present life beyond Earth.

Scientists look for these "fingerprints of life" in exoplanets and moons.

knowledgezone.co.in/posts/Alien-...

Biosignatures: Detection Of A Biopolymer In 500 Million Year Old Trilobite Fossils - Astrobiology A UT San Antonio-led international research team has identified chitin

Biosignatures: Detection Of A Biopolymer In 500 Million Year Old Trilobite Fossils
astrobiology.com/2026/02/bios... #astrobiology #biosignature #paleontology #TrilobiteTuesday

Resurrecting Ancient Enzymes in NASA's Search for Life Beyond Earth - NASA Science NASA-supported scientists have resurrected an enzyme first used by organisms on Earth 3.2-billion years ago and, in the process, have validated a chemical

#xenobiology #life #biosignature

Diazotrophs ar not just the only way to fixate nitrogen on Earth but showing us a possible way to look for signs of alien life forms elsewhere.
science.nasa.gov/science-rese...

Resurrected nitrogenases recapitulate canonical N-isotope biosignatures over two billion years - Nature Communications The study shows that nitrogenase enzymes have maintained stable isotope signatures over billions of years, revealing how ancient microbes shaped Earth’s nitrogen cycle and offering a new experimental ...

Our new paper, out today! We resurrected ancient nitrogenases first used by life on Earth 3 billion years ago. We combined synthetic biology and geology & validated their chemical #biosignature in rocks that helps reveal ancient life on Earth!(and beyond!)

Link: www.nature.com/articles/s41...

Climates Of Terrestrial Exoplanets And Biosignatures - Astrobiology Understanding the climates of terrestrial exoplanets and the detectability of biosignatures is an inherently interdisciplinary challenge

Climates Of Terrestrial Exoplanets And Biosignatures
astrobiology.com/2026/01/clim... #Astrobiology #exoplanet #astronomy #Biosignature

The Origin, Extension, and Future of the “NASA Definition” of Life - Astrobiology The “NASA definition” enjoys broad popularity among scientists, particularly in the astrobiology community: life is “a self-sustained chemical system capable of Darwinian evolution.”

The Origin, Extension, and Future of the "NASA Definition" of Life
astrobiology.com/2026/01/the-... #astrobiology #microbiology #biosignature

A Next Generation Space Antimicrobial: Assessing Microbial Activity And Reduction Across The ISS - Astrobiology Microbial contamination in spacecraft poses a threat to crew health and operational integrity.

A Next Generation Space Antimicrobial: Assessing Microbial Activity And Reduction Across The ISS
astrobiology.com/2026/01/a-ne... #astrobiology #microbiology #biosignature #ISS

The Microbial Inhabitants of the Corona Lava Tube: Astrobiological Insights from a Mars Analog Environment - Astrobiology Lava tubes are recognized as strategic targets in the search for life on Mars.

The Microbial Inhabitants of the Corona Lava Tube: Astrobiological Insights from a Mars Analog Environment
astrobiology.com/2026/01/the-... #astrobiology #Mars #microbiology #biosignature

Original post on sci.news

Biologists ‘Resurrect’ 3.2-Billion-Year-Old Enzyme A team of researchers led by the University of Wisconsin-Madison has reverse-engineered a primordial nitrogen-fixing enzyme, illuminating how ...

#Astrobiology #Biology #Bacteria #Biosignature #DNA #Enzyme […]

[Original post on sci.news]

Original post on sci.news

Biologists ‘Resurrect’ 3.2-Billion-Year-Old Enzyme A team of researchers led by the University of Wisconsin-Madison has reverse-engineered a primordial nitrogen-fixing enzyme, illuminating how ...

#Astrobiology #Biology #Bacteria #Biosignature #DNA #Enzyme […]

[Original post on sci.news]

SPHEREx Wins 2026 Sylvia A. Earle Award For Exploration Excellence From The Explorers Club - Astrobiology The Sylvia A. Earle Award for Exploration Excellence, previously known as the Citation of Merit, is an annual award given by the Explorers Club

SPHEREx Wins 2026 Sylvia A. Earle Award For Exploration Excellence From The Explorers Club
astrobiology.com/2026/01/sphe... #astrobiology #astrochemistry #biosignature #SPHEREx

Astrochemistry: The SPHEREx Satellite Mission - Astrobiology SPHEREx, a NASA explorer satellite launched on 11 March 2025, is carrying out the first all-sky near-infrared spectral survey.

Astrochemistry: The SPHEREx Satellite Mission
astrobiology.com/2026/01/astr... #astrobiology #astrochemistry #biosignature #SPHEREx

Ultra-low Noise Mid-infrared Detector Could Help Detect Biosignatures On Exoplanets - Astrobiology The mid-infrared (MIR) wavelength range is an important regime that can detect the biosignatures of life that may exist on distant planets.

Ultra-low Noise Mid-infrared Detector Could Help Detect Biosignatures On Exoplanets
astrobiology.com/2026/01/ultr... #astrobiology #biosignature #tricorder

How Did These Strange, Ancient Earth Life Forms Turn Into Such Remarkable Fossils? - Astrobiology In Earth’s fossil record, soft-bodied organisms like jellyfish rarely stand the test of time

How Did These Strange, Ancient Earth Life Forms Turn Into Such Remarkable Fossils?
astrobiology.com/2026/01/how-... #Astrobiology #biosignature #fossils

AI Learns From The Tree Of Life To Support Rare Disease Diagnosis - Astrobiology Researchers have created an artificial intelligence model that can identify which mutations in human proteins are most likely to cause disease

AI Learns From The Tree Of Life To Support Rare Disease Diagnosis
astrobiology.com/2026/01/ai-l... #astrobiology #genomics #synbio #biosignature

Salt Diapirs As An Architect Of Neoproterozoic Stromatolite Platform Reefs - Astrobiology During the Precambrian, stromatolite reefs played an essential role in the evolution of Earth’s climate and life systems

Salt Diapirs As An Architect Of Neoproterozoic Stromatolite Platform Reefs
astrobiology.com/2026/01/salt... #astrobiology #biosignature

Self-assembled Versus Biological Pattern Formation In Geology - Astrobiology Both abiotic self-organization and biological mechanisms have been put forward as the origin of a number of geological patterns.

Self-assembled Versus Biological Pattern Formation In Geology
astrobiology.com/2026/01/self... #astrobiology #nanotechnology #Biophysics #biosignature #aas247

Direct Constraints From 1.4 Ga Fluid Inclusions Reveal A Fair Climate And Oxygenated Atmosphere - Astrobiology The Mesoproterozoic eon often regarded as mundane and static

Direct Constraints From 1.4 Ga Fluid Inclusions Reveal A Fair Climate And Oxygenated Atmosphere
astrobiology.com/2026/01/dire... #astrobiology #biosignature #habitability #AAS247

Lunar Spacecraft Exhaust Could Obscure Clues To Origins Of Life - Astrobiology Over half of the exhaust methane from lunar spacecraft could end up contaminating areas ofthe moon that might otherwise yield clues about the origins of earthly life

Lunar Spacecraft Exhaust Could Obscure Clues To Origins Of Life
astrobiology.com/2026/01/luna... #astrobiology #Moon #Artemis #biosignature #AAS247

Orbital Biosignature Assay: Lake Eyre - Astrobiology As we begin to study worlds in our own solar system that might have life we use our home world as a testbed for the various ways to detect and characterize biosignatures.

Orbital Biosignature Assay: Lake Eyre
astrobiology.com/2026/01/orbi... #astrobiology #biosignature #remotesensing #AAS247

Dearth of Photosynthetically Active Radiation Suggests No Complex Life on Late M-Star Exoplanets - Astrobiology The rise of oxygen in the Earth's atmosphere during the Great Oxidation Event (GOE) occurred about 2.3 billion years ago.

Dearth of Photosynthetically Active Radiation Suggests No Complex Life on Late M-Star Exoplanets
astrobiology.com/2026/01/dear... #astrobiology #exoplanet #biosignature #AAS247

Subsurface Microbiology And The Pressing Societal Need To Support Future Exploration - Astrobiology Subsurface microbiology is at a crossroads, evolving from asking ‘who’s home’ to seeking clarity on microbes' functionality

Subsurface Microbiology And The Pressing Societal Need To Support Future Exploration
astrobiology.com/2026/01/subs... #astrobiology #microbiology #biosignature #AAS247