Astrobiology

@astrobiology.bsky.social

1 day ago

Reassessing Planetary Composition: Evidence Of Rock-dominated Envelopes In Uranus And Neptune - Astrobiology Although Uranus and Neptune are commonly classified as ice giants, their exact compositions remain poorly constrained.

Reassessing Planetary Composition: Evidence Of Rock-dominated Envelopes In Uranus And Neptune
astrobiology.com/2026/04/reas... #astrobiology #exoplanet #astrogeology

Astrobiology

@astrobiology.bsky.social

3 days ago

Active Moons In Our Solar System And Beyond - Io, Europa, Enceladus, Triton, and Exomoons - Astrobiology The outgassing signatures of Io, Europa, Enceladus, Triton, and Io-like exomoons are the focus of this review chapter.

Active Moons In Our Solar System And Beyond -- Io, Europa, Enceladus, Triton, and Exomoons
astrobiology.com/2026/04/acti... #astrobiology #astrogeology

Astrobiology

@astrobiology.bsky.social

3 days ago

Discovery Of Unexpectedly Large Organic Molecules from Asteroid Ryugu - Astrobiology Using a high-resolution atomic force microscope ( AFM ), we directly observed the skeletal structures of individual organic molecules extracted from the Ryugu sample.

Discovery Of Unexpectedly Large Organic Molecules from Asteroid Ryugu
astrobiology.com/2026/04/disc... #astrobiology #astrochemistry #astrogeology

Astrobiology

@astrobiology.bsky.social

3 days ago

Thermal Segregation and Reddening in Europa's Double Ridges - Astrobiology Europa's double ridges often display lower albedo and redder color than their surroundings.

Thermal Segregation and Reddening in Europa's Double Ridges
astrobiology.com/2026/04/ther... #astrobiology #astrochemistry #astrogeology

Astrobiology

@astrobiology.bsky.social

3 days ago

Analysing The Sample Preparation Process In Meteorites And Its Impact On The Pretreatment Of Returned Samples To Earth - Astrobiology The study of meteorites is important for planetary sciences

Analysing The Sample Preparation Process In Meteorites And Its Impact On The Pretreatment Of Returned Samples To Earth
astrobiology.com/2026/04/anal... #astrobiology #astrochemistry #astrogeology

Astrobiology

@astrobiology.bsky.social

4 days ago

Nanoscale Infrared Spectroscopy Reveals Complex Organic–mineral Assemblages In Asteroid Bennu - Astrobiology Asteroid Bennu preserves primitive material from the early solar system

Nanoscale Infrared Spectroscopy Reveals Complex Organic–mineral Assemblages In Asteroid Bennu
astrobiology.com/2026/04/nano... #astrobiology #astrochemistry #astrogeology #biosignatures

Astrobiology

@astrobiology.bsky.social

5 days ago

The Fate Of Frozen Carbonated Water At Europa-like Conditions - Astrobiology We present the results of experiments probing the retention of CO2 in crystalline water ice

The Fate Of Frozen Carbonated Water At Europa-like Conditions
astrobiology.com/2026/04/the-... #astrobiology #astrochemistry #astrogeology

Astrobiology

@astrobiology.bsky.social

5 days ago

Spectral Signatures From The Habitable Zone - Astrobiology This work describes the context and approach for the detection of spectroscopic signatures from planets in the habitable zone of nearby stars

Spectral Signatures From The Habitable Zone
astrobiology.com/2026/04/spec... #astrobiology #biosignature #astrochemistry #astrogeology

Astrobiology

@astrobiology.bsky.social

5 days ago

Machine Learning As A Transformative Tool for (Exo-)Planetary Science - Astrobiology The exploration of planetary bodies in our Solar system and beyond relies on the processing

Machine Learning As A Transformative Tool for (Exo-)Planetary Science
astrobiology.com/2026/04/mach... #astrobiology #AI #astrogeology #astrochemistry

Astrobiology

@astrobiology.bsky.social

5 days ago

From Early Earth to Enceladus - Mineral Electrochemistry Could Drive Organic Synthesis - Astrobiology At some point in Earth’s history, chemistry transitioned from abiotic organic synthesis

From Early Earth to Enceladus - Mineral Electrochemistry Could Drive Organic Synthesis
astrobiology.com/2026/04/from... #astrobiology #biosignature #astrochemistry #astrogeology

Astrobiology

@astrobiology.bsky.social

5 days ago

Chang'e Mission Samples Reveal How Exogenous Organic Matter Evolves On The Moon - Astrobiology Elements essential to life, such as carbon, nitrogen, oxygen, phosphorus, and sulfur, were “delivered” to the Earth and Moon during the early stages of the Solar System via asteroids and comets impact...

Chang'e Mission Samples Reveal How Exogenous Organic Matter Evolves On The Moon
astrobiology.com/2026/04/chan... #astrobiology #biosignature #astrochemistry #astrogeology #Artemis

Astrobiology

@astrobiology.bsky.social

1 week ago

Wide Gullies In Terra Cimmeria On Mars - Astrobiology The objective of this observation is to examine a group of gullies that are quite wide, but have short channels

Wide Gullies In Terra Cimmeria On Mars
astrobiology.com/2026/04/wide... #astrobiology #astrogeology #Mars

Astrobiology

@astrobiology.bsky.social

1 week ago

Study Of The Migration Of Earth-like Planets In Planetesimal Disks And The Formation Of Debris Disks - Astrobiology The aim of this study is to investigate the interaction of Earth-mass planets with a planetesimal disk.

Study Of The Migration Of Earth-like Planets In Planetesimal Disks And The Formation Of Debris Disks
astrobiology.com/2026/04/stud... #astrobiology #exoplanet #astrogeology

Astrobiology

@astrobiology.bsky.social

1 week ago

Strong Nickel Enrichment Co-located With Redox-organic Interactions In Neretva Vallis, Mars - Astrobiology In 2024, NASA’s Perseverance rover explored Neretva Vallis, an ancient river channel that once transported water into Jezero crater.

Strong Nickel Enrichment Co-located With Redox-organic Interactions In Neretva Vallis, Mars
astrobiology.com/2026/04/stro... #astrobiology #geochemistry #astrogeology #Mars

Astrobiology

@astrobiology.bsky.social

1 week ago

How Jupiter Cultivated More Large Moons Than Saturn - Astrobiology Jupiter and Saturn have the largest satellite systems

How Jupiter Cultivated More Large Moons Than Saturn
astrobiology.com/2026/04/how-... #astrobiology #Jupiter #Saturn #astrogeology

Wild Sown

@wildsown.bsky.social

1 week ago

#astrogeology field sites in #Nunavut & #Canada.

Goodbye, "von Braun Slope" - you never were and never will be.

May those who dared speak that name never walk your rocky expanse again.

#ArtemisII #spaceexploration #nasa #lunaroutpost #moon #moonbase

Wild Sown

@wildsown.mastodon.social.ap.brid.gy

1 week ago

While we are here choosing #Earth and choosing each other, we need to have a talk about how #colonial "frontier" mindset impacts the way "#explorers" conceive their missions and expeditions.

And while we're here, TODAY is the day we strip the names […]

[Original post on mastodon.social]

Astrobiology

@astrobiology.bsky.social

2 weeks ago

Earth Formed From Local Building Blocks - Astrobiology Planetary scientists have long debated where the material that formed our Earth comes from

Earth Formed From Local Building Blocks
astrobiology.com/2026/04/eart... #astrobiology #astrogeology

Astrobiology

@astrobiology.bsky.social

2 weeks ago

SuperCam Identifies Corundum In Jezero Crater, Mars, Using Time-Resolved Luminescence Spectroscopy - Astrobiology The Perseverance rover recently began exploring the Jezero crater rim after traversing the crater floor, fan deposits, and margin unit

SuperCam Identifies Corundum In Jezero Crater, Mars, Using Time-Resolved Luminescence Spectroscopy
astrobiology.com/2026/04/supe... #astrobiology #astrogeology #Mars

Astrobiology

@astrobiology.bsky.social

2 weeks ago

Tianwen-2 Target Asteroid (469219) Kamo'oalewa Probably Develops An Itokawa-compositional But Ultra-highly Space-weathered Surface - Astrobiology China's Tianwen-2 mission plans to return samples from Earth quasi-satellite (469219) Kamo'oalewa

Tianwen-2 Target Asteroid (469219) Kamo'oalewa Probably Develops An Itokawa-compositional But Ultra-highly Space-weathered Surface
astrobiology.com/2026/04/tian... #astrobiology #astrochemistry #astrogeology

Astrobiology

@astrobiology.bsky.social

2 weeks ago

Interaction Between Vegetation And Snowball Phases In The Late Proterozoic Earth - Astrobiology Between 2.4 and 0.6 Gy ago, our planet underwent several episodes of global glaciations, including the Snowball Earth

Interaction Between Vegetation And Snowball Phases In The Late Proterozoic Earth
astrobiology.com/2026/03/inte... #astrobiology #exoplanet #astrogeology #oceanworld

Astrobiology

@astrobiology.bsky.social

2 weeks ago

Iron Isotope Anomalies And The Origin Of The Earth - Astrobiology Understanding the origin of the Earth requires determining the original formation location of its building material.

Iron Isotope Anomalies And The Origin Of The Earth
astrobiology.com/2026/03/iron... #astrobiology #astrochemistry #astrogeology

Astrobiology

@astrobiology.bsky.social

3 weeks ago

Study Shows Movement Of Tectonic Plates 3.5 Billion Years Ago - Astrobiology The history of the Earth is written on the great tablets of tectonic plates.

Study Shows Movement Of Tectonic Plates 3.5 Billion Years Ago
astrobiology.com/2026/03/stud... #astrobiology #tectonics #astrogeology

Astrobiology

@astrobiology.bsky.social

3 weeks ago

Analysis Of Io's tidal Response As A Function Of The Properties Of The Partially Molten Layer - Astrobiology Io's internal heat is generated by Jupiter-driven tidal dissipation and Laplace resonance

Analysis Of Io's tidal Response As A Function Of The Properties Of The Partially Molten Layer
astrobiology.com/2026/03/anal... #astrobiology #LavaWorld #astrogeology

Astrobiology

@astrobiology.bsky.social

4 weeks ago

The Efficient Delivery Of Highly-siderophile Elements To The Core Creates A Mass Accretion Catastrophe For The Earth - Astrobiology The excess abundance of highly siderophile elements

The Efficient Delivery Of Highly-siderophile Elements To The Core Creates A Mass Accretion Catastrophe For The Earth
astrobiology.com/2026/03/the-... #astrobiology #astrogeology #LPSC2026

Astrobiology

@astrobiology.bsky.social

4 weeks ago

Colliding Dust And The Sparks Of Creation - Astrobiology Two microscopic grains collide and produce a tiny spark. This phenomenon may have provided the energy to kick off life on Earth.

Colliding Dust And The Sparks Of Creation
astrobiology.com/2026/03/coll... #astrobiology #astrochemistry #astrogeology #LPSC2026

Astrobiology

@astrobiology.bsky.social

4 weeks ago

LEAG-ExMAG Artemis Sample Return SAT Reports Now Available - Astrobiology The Lunar Exploration Analysis Group (LEAG) and Extraterrestrial Materials Analysis Group (ExMAG), were requested and empowered by NASA’s Science Mission Directorate (SMD) and Planetary Science Divisi...

LEAG-ExMAG Artemis Sample Return SAT Reports Now Available
astrobiology.com/2026/03/leag... #astrobiology #Artemis #Astrogeology #LPSC2026

Astrobiology

@astrobiology.bsky.social

1 month ago

Asteroid Bennu's Rugged Surface Baffled NASA. We Finally Know Why - Astrobiology In one of the biggest surprises of NASA's OSIRIS-REx mission, its target asteroid, Bennu, turned out to be a jagged, rugged world covered in large boulders

Asteroid Bennu's Rugged Surface Baffled NASA. We Finally Know Why
astrobiology.com/2026/03/aste... #astrobiology #astrogeology #LPSC2026

Astrobiology

@astrobiology.bsky.social

1 month ago

Bridging the Gap: Using Brown Dwarfs to Examine Silicate Clouds in Giant Exoplanet Atmospheres - Astrobiology We present results from examining the silicate cloud modeling of four JWST-observed hot Jupiters in the context of brown dwarf theory

Bridging the Gap: Using Brown Dwarfs to Examine Silicate Clouds in Giant Exoplanet Atmospheres
astrobiology.com/2026/03/brid... #astrobiology #astrochemistry #exoplanet #astrogeology #LPSC2026

Astrobiology

@astrobiology.bsky.social

1 month ago

exoALMA. XXIV. Formaldehyde Emission in Protoplanetary Disks of exoALMA Compared with Their Properties and Dynamical State - Astrobiology The presence of asymmetries and substructures in protoplanetary disks

exoALMA. XXIV. Formaldehyde Emission in Protoplanetary Disks of exoALMA Compared with Their Properties and Dynamical State
astrobiology.com/2026/03/exoa... #astrobiology #astrochemistry #astrogeology #LPSC2026