Posted inAstrogeology, Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Exploration Gear & Tech, Lava / magma ocean / Volcanic Worlds, Sample Return, Status Report, Venus

Venus Cloud Catcher As A Proof Of Concept Aerosol Collection Instrument

We report on the proof-of-concept of a low-mass, low-power method for collecting micron-sized sulfuric acid aerosols in bulk from the atmosphere of Venus. The collection method uses four wired meshes […]

Posted inAriel Mission, Astronomy & Telescopes, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Gaia - Planetary Perspectives, Habitable Zones, Icy Worlds, Press Release, Space Weather & Heliophysics, Stellar Cartography, Terraforming & Geoengineering, Venus, Water/Hycean Worlds & Oceanography

A Rare Venus Solar Transit Helps Unravel Exoplanet Atmospheres

In the next decade, researchers will start probing the atmosphere of planets as small as Earth and Venus orbiting nearby stars. But although these two Solar System planets are similar […]

Posted inAstrogeology, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Habitable Zones, Imaging & Spectroscopy, Lava / magma ocean / Volcanic Worlds, Mapping, Geodesy, Cartography, Bathymetry, Origin & Evolution of Life, Press Release, Venus

Research Suggests That Venus Never Had Liquid Water On Its Surface

A team of astronomers has found that Venus has never been habitable, despite decades of speculation that our closest planetary neighbour was once much more like Earth than it is […]

Posted inAtmospheres, Climate, Weather, Gaia - Planetary Perspectives, Habitable Zones, Mars, Status Report, Terraforming & Geoengineering, Venus

Our Solar System Neighborhood: Three Diverging Tales of Planetary Habitability and Windows to Earth’s Past and Future

Understanding planetary habitability is one of the major challenges of the current scientific era, particularly given the discovery of a large and diverse terrestrial exoplanet population.

Posted inAtmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Gaia - Planetary Perspectives, Habitable Zones, Lava / magma ocean / Volcanic Worlds, Status Report, Terraforming & Geoengineering, Venus

Stability of 20 Biogenic Amino Acids in Concentrated Sulfuric Acid: Implications for the Habitability of Venus’ Clouds

Scientists have long speculated about the potential habitability of Venus, not at the 700K surface, but in the cloud layers located at 48–60 km altitudes, where temperatures match those found on […]

Posted inAtmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Habitable Zones, Imaging & Spectroscopy, Status Report, Venus

Venus Phosphine: Updates and Lessons Learned

The discovery of phosphine in Venus’ atmosphere provides lessons for the search for life. The detection has survived all challenges and has acquired independent support from archival data from PVP.

Posted inAstrochemistry, Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Habitable Zones, Imaging & Spectroscopy, Origin & Evolution of Life, Planetary Protection & Biosafety, Press Release, Sample Return, Terraforming & Geoengineering, Venus

Simple Lipids Form Stable Higher-order Structures In Concentrated Sulfuric Acid

Venus has become a target of astrobiological interest because it is physically accessible to direct exploration, unlike exoplanets. So far this interest has been motivated not by the explicit expectation […]

Posted inAlpha Centauri, Astrogeology, Beta Pictoris, Ceres, Exoplanets, -moons, -comets, Gas Giants, Icy Worlds, Jupiter, Lava / magma ocean / Volcanic Worlds, Mapping, Geodesy, Cartography, Bathymetry, Mars, Mercury, Neptune, Pluto, Proxima Centauri, Saturn, Status Report, tau Ceti, TRAPPIST-1, Uranus, Venus, Water/Hycean Worlds & Oceanography

Classifications For Exoplanet and Exoplanetary Systems

When a star is described as a spectral class G2V, we know its approximate mass, temperature, age, and size. At more than 5,700 exoplanets discovered, it is a natural developmental […]

Posted inAstrogeology, Biosignatures & Paleobiology, Europa, Ganymede, Habitable Zones, Icy Worlds, Jupiter, Mapping, Geodesy, Cartography, Bathymetry, Missions & Hardware, Status Report, Venus, Water/Hycean Worlds & Oceanography

Astrobiology Fleet Update: Video: Juice’s Lunar-Earth Flyby

On 19–20 August 2024, Juice successfully completed a world-first lunar-Earth flyby, with flight controllers guiding the spacecraft first past the Moon, then past Earth. The gravity of the two changed […]

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