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 […]
astro-ph.IM
Posted inBiosignatures & Paleobiology, Commercial & Private Sector, Cubesats and smallsats, Microbiology & Virology, Microgravity, Missions & Hardware, Nanotechnology & SynBio, Radiation, Space Life Science, Status Report
Development and Demonstration of a Modular Astrobiological Experiments (MAEx) Payload for Autonomous Biological Monitoring in Low Earth Orbit (LEO)
The spaceflight environment presents unique physicochemical conditions, including microgravity, ionizing radiation, altered fluid transport, and confined engineered habitats, which influence biological systems and biomolecular assembly processes.
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 inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Gaia - Planetary Perspectives, Habitable Zones, Imaging & Spectroscopy, Mars, Status Report
The Role Of The Hubble Space Telescope In Advancing Our Understanding Of Atmospheric Escape In Exoplanets
An important evolutionary pathway for planetary atmospheres is escape to space, which has been studied on Earth and Mars for several decades and more recently in exoplanets.
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Extinction events, Gaia - Planetary Perspectives, Habitable Zones, Icy Worlds, Mars, Status Report, Terraforming & Geoengineering, Water/Hycean Worlds & Oceanography
Mars, A Post-Habitable Planet?
Mars provides a critical analog to once habitable exoplanets that have since lost their surface liquid water.
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Intelligence & Language, Interstellar, SETI & Technosignatures, Status Report
Isolating Broadband Radio Technosignatures (BRaTs): A Framework for Detecting Planetary-Scale Leakage
The search for extraterrestrial intelligence (SETI) has traditionally focused on the detection of narrowband electromagnetic beacons.
Posted inAI - Data - Apps - Cybernetics, Astrochemistry, Astronomy & Telescopes, Biosignatures & Paleobiology, Imaging & Spectroscopy, Status Report
The Hubble Advanced Spectral Product (HASP) Program
The Hubble Advanced Spectral Products (HASP) program is designed to robustly coadd Cosmic Origins Spectrograph (COS) and Space Telescope Imaging Spectrograph (STIS) spectra within the Mikulski Archive for Space Telescopes […]
Posted inAstronomy & Telescopes, Citizen Science / Open Science, Intelligence & Language, SETI & Technosignatures, Status Report
Results Of Ten Tears Of UCLA SETI Searches With The Green Bank Telescope
We have been conducting a search for narrowband radio signals with the L-band receiver (1.15-1.73 GHz) of the 100 m diameter Green Bank Telescope (Margot et al., 2023). So far, […]
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Missions & Hardware, Status Report
A Preliminary Exploration Of The Effects Of Baseline Length For The LIFE Space Mission
By aiming to find and characterise dozens of habitable exoplanets through the technique of nulling interferometry, the LIFE space mission will produce transformational science. One of the key parameters for […]
Posted inAstrochemistry, Astronomy & Telescopes, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report, Stellar Cartography
Overview Of The New Hubble Spectroscopic Legacy Archive
The new Hubble Spectroscopic Legacy Archive (HSLA) provides coadded spectra of individual targets that have been observed with the Cosmic Origins Spectrograph (COS) and the Space Telescope Imaging Spectrograph (STIS) […]