Articles tagged with Astrobiology
A new experiment reveals microbes can grow in harsh Mars-like conditions, including high salt concentrations and low pressure. The study suggests new directions in the search for potential cellular life on Mars.
Researchers built a complex virtual Earth with no life to provide a planetary baseline for distinguishing between habitable and inhabited worlds. The simulation predicts 19 planetary properties and can be generalized to predict how an atmosphere might evolve on any rocky planet.
The SETI Institute welcomes three artists-in-residence to explore life beyond Earth and the nature of intelligence through bioart, biotechnology, and consciousness. Artists Amy Karle, Dorotea Dolinšek, and Johannes Heldén will bring fresh perspectives to fundamental questions about life, intelligence, and consciousness.
Researchers found a clue in a neutrino that could have helped matter dominate over antimatter in the early universe. The team discovered a 'decoupled' heavy neutrino that temporarily took over the energy density of the universe and triggered a matter-dominated period.
Researchers used synchrotron X-ray computed microtomography to observe fluid inclusions in natron, a mineral that could preserve clues to Enceladus's subsurface ocean. Natron's crystallization mechanism could trap and preserve biological material, making it a crucial target for future missions.
A model study suggests that spatial structure can increase abiotic molecular complexity, which could be used to detect life. The researchers found that ordered structures can shift assembly indices upward, but only under certain conditions.
Researchers at the University of Osaka have developed an electrical method to detect extraterrestrial life by identifying amino acid biosignatures. The technique uses artificial intelligence and nanotechnology to distinguish between L- and D-forms of amino acids with over 80% accuracy.
A new map shows where atmospheric formaldehyde on early Mars is likely to have reached the surface, potentially providing clues to the origins of life on the planet. Water vapor played a crucial role in formaldehyde formation and delivery, with water-rich regions predicted to receive more formaldehyde than drier areas.
The SETI Institute has welcomed three new postdoctoral fellows to study the evolution of viruses and cells, habitability on Mars, and the formation of planetary systems. Their research covers three distinct areas, from the origins of genomic complexity to the conditions that constrain the potential for life.
The SETI Institute and ETH Zurich have agreed on a strategic partnership to investigate the origin and prevalence of life in the universe. A new assistant professorship at ETH Zurich will focus on biosignatures, habitability, and the co-evolution of life and the environment.
The Europlanet Science Congress 2026 will cover various topics in planetary research, including the Solar System, exoplanets, and artificial intelligence. The conference will feature over 125 scientific sessions and keynote talks, with around 1200 planetary scientists attending from 40 countries.
Researchers have estimated that the unknown absorber in Venus's clouds must absorb light very efficiently, occur at a high concentration, or both, with a required decadic absorption coefficient reaching approximately 1,278 cm-1 at 375 nm. This suggests that highly absorbing conjugated organic molecules could be the culprit, but the stu...
Engineers at Texas A&M University, NASA, and Purdue University create algorithms for managing spacecraft traffic around Gateway, a lunar spaceport. The system balances fuel efficiency and operational demands to reduce the risk of collisions during space missions.
A new study published in Science Advances found that bacteria and fungi from Earth can survive for at least a week in shaded nooks and crannies around the lunar south pole. The study's findings highlight the need to better understand microbial persistence in extreme lunar environments, which is crucial for future space missions.
A team at the SETI Institute is developing a new method to identify resources in space using Raman spectroscopy, aiming to answer key questions such as what is there, how much is there, and where can it be found. This approach could potentially reduce costs and risks associated with space exploration and resource extraction.
New research suggests that Europa's shallow water reservoirs are unlikely to contain water from the deep ocean. The route from deep ocean to surface is probably much more difficult than scientists assumed, with turbulent water rising through ice cracks leading to freezing and clogging.
Astronomers have detected an atmosphere on a rocky planet, LHS 1140 b, in the habitable zone of its host star, which is consistent with conditions for liquid water and potentially life. The discovery was made using the WINERED spectrograph on the Magellan Clay telescope and reveals helium escaping from the upper atmosphere.
Researchers at Michigan State University found that current AI models can be duped into seeing signatures of life in digital organisms with high accuracy. However, when tested on unseen examples, the results were less impressive. The team showed that it was possible to convince the AI that it was seeing signs of life where they didn’t ...
A University of Manchester astronomer led a major international effort to update the long-standing 'post-detection protocols' used in Search for Extraterrestrial Intelligence (SETI). The revised Declaration of Principles marks the first major update in over 15 years, reflecting a media landscape transformed by social media and artifici...
The SETI Institute has awarded $1 million in STRIDE grants to support cutting-edge research in astrobiology, exoplanet science, and public engagement. The awards will fund projects that push the boundaries of life detection, planetary climate modeling, and innovative education initiatives.
False-negative results may lead to overlooking environments that could harbor life beyond current detection capabilities. Researchers emphasize the need for targeted research strategies, combining laboratory experiments with modeling research and fieldwork to address these risks.
The LAMECS 2026 symposium will feature keynote lectures on astrobiology, infectious disease, public health, and science policy. Early career scientists can showcase their work, expand networks, and explore career options in microbiology.
The SETI Institute recognizes Dr. Matthew Tiscareno's outstanding achievements in astrobiology, technology, and exploration of life in the universe. His research has advanced understanding of solar system orbital dynamics and planetary rings.
Researchers found amino acids are consistently more diverse and evenly distributed in biological samples than abiotic ones, while fatty acids show the opposite pattern. This fundamental principle of life may be detectable in data collected by space missions.
The SETI Institute's new initiative explores the global scientific, philosophical, and societal implications of discovering life beyond Earth, connecting experts in various fields. The Discovery and Futures Lab aims to anticipate and guide humanity's responses to this discovery.
NASA's Curiosity Mars rover has discovered diverse organic molecules on Mars, including chemicals that could be signs of ancient life. The findings suggest the Martian surface can preserve molecules that could serve as building blocks for life.
Researchers propose an agnostic biosignature that detects life on a population level by analyzing patterns of planetary traits and spatial relationships. This method prioritizes reliability over completeness, minimizing false positives even if it misses some life-bearing planets.
Dr. Lori Marino receives the 2026 Drake Award for her groundbreaking work on intelligence evolution, recognizing her contributions to understanding complex life forms on Earth and beyond. Her research focuses on brain evolution, cognition, and self-awareness in various species.
The OSIRIS-REx mission has found that asteroid Bennu's boulders are cracked, not porous as initially thought. This discovery transforms our understanding of how to interpret an asteroid's thermal properties from Earth-based observations.
A Johns Hopkins University study finds that tiny life forms can survive extreme pressure comparable to an ejection from Mars after an asteroid hit, and may potentially move between planets. The discovery raises implications for planetary protection and space missions.
A microbe survived extreme pressures generated by a simulated Mars impact, suggesting it could withstand launch across space after major impacts. The hardy extremophile prioritized cellular repair and maintained structure in its cell envelope, enabling 60% survival of microbes.
Researchers at UW-Madison have resurrected a 3.2-billion-year-old nitrogenase enzyme to improve our understanding of the origins of life on Earth and potentially recognize signs of life elsewhere.
Astronomers may need to look beyond the traditional habitable zone for liquid water and potentially life-friendly conditions. A new study suggests that tidally locked worlds, even those orbiting closer to cool M- and K-dwarf stars than previously thought, could sustain liquid water on their night side.
A new study suggests that physical properties guided life before genes did. Phospholipids with more unsaturated bonds were more likely to merge and grow under freeze-thaw cycles.
Researchers at Aarhus University have demonstrated that protein building blocks essential for life as we know it form readily in space. Peptides, which bond amino acids together, were found to react with each other to form proteins on dust particles.
The SETI Institute is now accepting nominations for the 2026 Tarter Award, recognizing individuals who significantly advance humanity's search for extraterrestrial life and intelligence. The award comes with a $100,000 prize and honors innovative projects across science, technology, education, art, philosophy, law, and ethics.
Researchers reanalyze Cassini mission data to find that Titan's interior is more icy and slushy than previously thought, with implications for the search for life on Titan. The new findings suggest a slushy layer instead of an ocean, which could facilitate the growth of simple organisms.
The Subaru Telescope's OASIS program has discovered a massive planet and a brown dwarf orbiting distant stars. These discoveries enable the upcoming Roman Space Telescope to test critical technologies for imaging Earth-like planets.
A new study reveals fresh chemical evidence of life in rocks over 3.3 billion years old, with molecular traces showing oxygen-producing photosynthesis emerged nearly a billion years earlier than thought. The approach uses machine learning to recognize subtle molecular fingerprints left behind by living organisms.
Life in Space bridges astrophysics and biology to explore conditions for life on Earth and beyond. The book offers a comprehensive view of astrobiology, tracing how astronomical and biological forces intersect to create and sustain life.
Researchers found yeast cells can withstand shock waves and toxic perchlorate salts, simulating Martian conditions. The yeast's ability to produce ribonucleoprotein condensates helps protect against stress, making it a model for astrobiology research and potential life support systems in space.
A massive exoplanet dubbed 'super-Earth' has been discovered orbiting a nearby dwarf star, offering new hope in the hunt for other worlds that could harbor life. The exoplanet, GJ 251 c, is approximately four times as massive as Earth and likely to be rocky.
Astronomers detected complex organic molecules in ices outside the Milky Way for the first time, finding five different carbon-based compounds, including methanol and acetic acid. This discovery sheds light on how chemical ingredients for life spread throughout the cosmos.
Researchers propose a new model for Earth's oxygenation, finding that high nickel and urea concentrations kept cyanobacterial blooms rare. As these compounds became available at lower levels, they drove the expansion of cyanobacteria, leading to long-term oxygen release and the Great Oxidation Event.
A recent study from Japan explores ancient microbial life on Earth by analyzing iron-rich hot springs that mimic the chemistry of early oceans. Microaerophilic iron-oxidising bacteria were found to be dominant, using ferrous iron as an energy source before photosynthesis became dominant.
Dr. Glein will discuss Enceladus' deep ocean beneath its icy surface, which contains organic molecules and nutrients needed for life. The Saturn moon's ocean erupts into space, forming a towering plume with constant activity, making it a promising place for life.
A new review in Microbial Biotechnology highlights microbes as allies in various industries, from food fermentation to biofuels. Films such as French Kiss and The Martian showcase microbes as positive forces, challenging the traditional villain stereotype.
Two studies reveal that natural processes can bring organic-rich materials to the Mars rover, increasing its diversity of samples. Rockfalls in Oxia Planum may have originated from elsewhere on Mars and were deposited through a series of floods over 3.5 billion years ago.
Planets with 10% carbon dioxide could maintain a biosphere for 4.2 billion years, while those with 1% carbon dioxide last only 3.1 billion years. These conditions make the existence of technological alien life unlikely, with estimated lifetimes ranging from 280,000 to millions of years.
A new study suggests that ancient Martian rocks contain minerals and organic matter indicative of a habitable environment and potential biological processes. The discovery was made in the Jezero Crater's Bright Angel formation, which is considered a prime target in the search for signs of past life.
Astronomers discovered a greedy white dwarf star consuming its closest celestial companion at an unprecedented rate. The study found that the super-dense white dwarf is burning brightly due to the mass transfer between the two stars, potentially leading to a massive explosion visible from Earth.
New research questions the origin of organic molecules in Enceladus's plumes, suggesting they could be formed by radiation on Saturn's surface rather than originating from the sub-surface ocean. This challenges astrobiologists' assumptions about the moon's habitability.
Astrobiologists have developed a new model to characterize water-rich sub-Neptunes, which are planets with sizes and masses between those of Earth and Neptune. This model accounts for the complex behavior of supercritical water and its implications for planetary formation and potential habitability.
Complex organic molecules, precursors to life's building blocks, have been found in a planet-forming disc around the outbursting protostar V883 Orionis. This discovery supports the idea that life's seeds are assembled in space and are widespread.
Scientists at SwRI conducted lab experiments to explain the mysterious distribution of hydrogen peroxide on Jupiter's icy moon Europa. The research found that trace amounts of CO2 in water ice can enhance hydrogen peroxide production, shedding light on the moon's habitability and chemical cycles.
NASA microbiologist James Holden is searching for signs of microbial life in Earth's deep-sea volcanoes, which he believes could be similar to those on Jupiter's moon Europa. The hydrothermal vents, where these microbes thrive, provide a unique environment that may support alien life.
A study found that lichen from the Mojave Desert can survive and replicate under extreme solar radiation, previously considered lethal. The discovery suggests that photosynthetic life may be possible on planets exposed to intense UV-C rays, offering new hope for the search of extraterrestrial life.
A new study reveals a connection between solar flares and short-term weather patterns on exoplanets. The research found that sudden outbursts of radiation from stars can cause measurable changes in a planet's climate within days.
New data from the James Webb Space Telescope suggests that Europa's icy surface is constantly changing due to interactions with charged particles. Laboratory experiments also found evidence of crystalline ice beneath the amorphous ice layer, indicating a possible liquid ocean beneath the surface.
A recent study suggests that Saturn's moon Titan could support simple, microscopic life forms due to its abundant organic content. However, the amount of biomass that can exist in this environment is likely to be extremely limited, possibly only a few pounds.