Imagine looking at yourself in the mirror, only to find that your reflection is governed by different laws than you are: Identical movements produce different outcomes, and what seems like […]
Biosignatures
Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
The Unique Ability Of The Hubble Space Telescope To Characterize Young Exoplanet Environments
The chemical and mass evolution of exoplanet atmospheres is shaped by their specific X-ray through ultraviolet (5 – 3200 Angstroms) irradiance history. X-ray and EUV (5 – 911 Angstroms) radiation […]
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Imaging & Spectroscopy, Status Report
Digging Into The Massive Protostar S255IR NIRS3: A Study of Nitrogen-Bearing Molecules and Their Prebiotic Chemistry
The study of complex nitrogen (N)-bearing molecules is essential for probing the physical and chemical evolution of star-forming regions.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
From Hubble to HWO: Bridging the Frontier of White Dwarf Exoplanet Science
White dwarf stars, the endpoint of stellar evolution for 97% of stars in our Milky Way, offer a unique and powerful window into the bulk elemental composition of rocky exoplanetary […]
Posted inAI - Data - Apps - Cybernetics, Analog Studies, Arctic / Antarctic / Alpine, Astronauts and Explorers, Away Teams & Field Reports, Caves, Craters, Mountains, Subsurface, Lava Tubes, Desert Worlds, Exploration Gear & Tech, Habitable Zones, Mapping, Geodesy, Cartography, Bathymetry, Mars, Missions & Hardware, Planetary Protection & Biosafety, Polar / Alpine Expeditions, Robotics/Rovers/UAVs, Sample Return, Space Physiology & Medicine, Status Report
Highlighting A Science Strategy For Human Exploration Of Mars
A Science Strategy for Human Exploration of Mars, charts a bold, scientifically based blueprint for humanity’s greatest cosmic adventure—sending explorers to Mars to answer the universe’s most profound questions: Is […]
Posted inBiochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Mars, Missions & Hardware, Status Report
An Organics-forward Approach To Searching For Life On Mars
The modern Martian surface is cold, dry, oxidizing, and perpetually bombarded with radiation, rendering it generally inhospitable to life as we know it.
Posted inAtmospheres, Climate, Weather, Biosignatures & Paleobiology, Habitable Zones, Microbiology & Virology, Origin & Evolution of Life, Press Release
Early Complex Life Lived In Oxygenated Seas, Challenging Long‑held Views Of Evolution
The earliest known eukaryotes, the ancestors of all complex life on Earth, lived in oxygenated, shallow marine environments nearly 1.7 billion years ago, according to a new study led by […]
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Imaging & Spectroscopy, Interstellar, SETI & Technosignatures, Status Report
The Search For Technosignatures: A Review Of Possibilities
This paper aims to review the diverse range of technosignatures that have been proposed in the literature.
Posted inBiochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Origin & Evolution of Life, Press Release, Tricorders & Sensors
Elemental Stoichiometry As An Ecological Biosignature With Applications To Life Detection
The vast chemical space of possible small molecules, estimated at 1060 compounds for molecules composed of just C, N, O, and S, is only sparsely occupied by biology.
Posted inBiogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Fossils & Paleontology, Gaia - Planetary Perspectives, Lava / magma ocean / Volcanic Worlds, Origin & Evolution of Life, Press Release, Water/Hycean Worlds & Oceanography
New Astrobiology Special Collection Explores Emerging Scientific Evidence For Land-based Origins Of Life
The scientific study of life’s origins is undergoing a major transition, from a decades-long focus on deep-sea hydrothermal vents toward increasing investigation of hot springs and other chemically dynamic environments […]