This view was generated from the digital terrain model and the nadir and colour channels of the High Resolution Stereo Camera on ESA’s Mars Express.
imaging
Posted inAtmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Press Release, Water/Hycean Worlds & Oceanography
A Hycean Interpretation of K2-18b Supported by Photochemical Atmospheric Compositional
The nature of the sub-Neptune K2-18b is debated between Hycean and mini-Neptune interpretations.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Simulation Of The Spin Evolution Of Some Selected Exoplanets And Inferences On Their Climate
In this work, using the simulator VPLanet, we analyze the spin evolution of some selected exoplanets due to the tidal interaction with their host star.
Posted inAtmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Measurements And Predictions Of H2 Pressure-broadening Coefficients Of CO2 Absorption Lines For Exoplanet Atmosphere Studies
Accurate and comprehensive H2 pressure-induced broadening data for CO2 infrared lines over a wide temperature range are essential for modeling atmospheric opacity of exoplanets. However, available data are currently limited, […]
Posted inAstronomy & Telescopes, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report
The First Remotely Detected Biosignature May Not Be the Most Common: Implications for JWST and HWO
The first detected member of a new astronomical class is often not representative of the underlying population, but instead reflects the selection effects of the observing technique that found it.
Posted inAstrogeology, Mars, Missions & Hardware, Press Release, Robotics/Rovers/UAVs
Curiosity Rover Shakes Loose A Pesky Mars Rock Named “Atacama”
After NASA’s Curiosity Mars rover drilled a sample from this rock on April 25, 2026, it withdrew its robotic arm and pulled the entire rock off the surface with it.
Posted inExoplanets, -moons, -comets, Status Report
A Climate-Constrained Bayesian Inverse Method for JWST Rocky Exoplanet Eclipse Spectra: A Case Study of LTT 1445A b
Determining whether temperate rocky exoplanets orbiting M stars retain atmospheres is currently a central goal of exoplanet astronomy. To this end, the James Webb Space Telescope has begun searching for […]
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Citizen Science / Open Science, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release, Stellar Cartography
TESS Planet Hunter Reveals A Map Of The Dazzling Night Sky
NASA’s TESS (Transiting Exoplanet Survey Satellite) has released its most complete view of the starry sky to date, filling in gaps from previous observations.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Missions & Hardware, Nanotechnology & SynBio, Press Release
New Ultra-Black Coating Could Enable the Search for Life on Exoplanets
What is a Starshade and What Could it Do?
Posted inAnalog Studies, Biosignatures & Paleobiology, Caves, Craters, Mountains, Subsurface, Lava Tubes, Desert Worlds, Exploration Gear & Tech, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Mars, Missions & Hardware, Robotics/Rovers/UAVs, Status Report
Perseverance Rover Snaps Selfie in Mars’ Western Frontier
The agency’s six-wheeled geologist took a self-portrait during its survey of an ancient landscape that may predate the formation of Jezero Crater itself.