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jainsid.bsky.social
@jainsid.bsky.social
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astrobiology.bsky.social
A Tale Of Two Red Planets
astrobiology.com/2025/04/a-ta... #astrobiology #Mars
A Tale Of Two Red Planets - Astrobiology
Around the equator, for example, vast networks of channels spread from Martian highlands, branching like trees and emptying into lakes and even, possibly, an ocean.
astrobiology.com
April 23, 2025 at 5:30 PM
Reposted
rasjournals.bsky.social
Published in #GJI Geophysical Journal International: "Unveiling nonlinear site response through time-frequency analysis of earthquake records", Lai et al. This is Fig. 1: for the caption & to read the paper please visit academic.oup.com/gji/article/... @royalastrosoc.bsky.social
(a) Moment magnitude versus Joyner–Boore distance to the stations and the (b) spatial distribution of the seismic events in the KiK-net data base of Bahrampouri et al. (2020). The two stations used for test cases (see Section 2.3), IBRH16 and IBRH11, are marked on the map.
April 24, 2025 at 8:05 AM
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astrobiology.bsky.social
Raiding Nature's Genetic Toolbox For UV-C Resistance By Functional Metagenomics
Scientific Reports
astrobiology.com/2025/04/raid... #astrobiology #tricorder #biosignature #genomics
Raiding Nature's Genetic Toolbox For UV-C Resistance By Functional Metagenomics - Astrobiology
As we assess the habitability of other worlds, we are limited by being able to only study terrestrial life adapted to terrestrial conditions.
astrobiology.com
April 23, 2025 at 5:30 PM
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astrobiology.bsky.social
What If We Find Nothing? Bayesian Analysis Of The Statistical Information Of Null Results In Future Exoplanet Habitability And Biosignature Surveys
astrobiology.com/2025/04/what... #astrobiology #exoplanet #biosignature
What If We Find Nothing? Bayesian Analysis Of The Statistical Information Of Null Results In Future Exoplanet Habitability And Biosignature Surveys - Astrobiology
Future telescopes will survey temperate, terrestrial exoplanets to estimate the frequency of habitable (ηHab) or inhabited (ηLife) planets.
astrobiology.com
April 23, 2025 at 5:30 PM
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astrobiology.bsky.social
Understanding Sulfate Stability on Mars: A Thermo-Raman Spectroscopy Study
astrobiology.com/2025/04/unde... #astrobiology #Mars #astrogeology
Understanding Sulfate Stability on Mars: A Thermo-Raman Spectroscopy Study - Astrobiology
This work examines the impact of high temperatures from celestial shock events on the stability of sulfates found on Mars (gypsum) and those expected to be present (syngenite and görgeyite). Raman spe...
astrobiology.com
April 23, 2025 at 5:30 PM
Reposted
skyandtelescope.bsky.social
Astronomers might have detected hints of life on a faraway planet — but they need more observations before they can say for sure.
buff.ly/EKWw5zP
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#astronomy #astrobiology #exoplanet #biosignature #searchforlife
Hints of Life on a Potential Ocean Planet
Astronomers might have detected hints of life on a faraway planet — but they need more observations before they can say for sure.
buff.ly
April 23, 2025 at 1:48 PM
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uahirise.bsky.social
HiRISE 3D: Cones at the Edge

These cones were interpretated to be volcanic in origin despite a distinct lack of volcanic activity in this area. Whether volcanism has occurred here recently or not is a key constraint on polar history.

www.uahirise.org/anaglyph/ESP...
NASA/JPL/University of Arizona
3D image shows a large cone with steep sides at the edge of the polar layered deposits on Mars. (NASA/JPL-Caltech/University of Arizona)
April 23, 2025 at 7:23 PM
Reposted
rasjournals.bsky.social
Published in #MNRAS: "RV-exoplanet eccentricities: Good, Beta, and Best", Stevenson et al. This is Fig. 6: for the caption & to read the paper please visit academic.oup.com/mnras/articl... @royalastrosoc.bsky.social
The period–eccentricity plane for all exoplanets in our sample, showing that circularization has a stronger influence on the short-period planets. Points are coloured based on if the system contains a single planet, or more than one planet. Histograms for eccentricities of either single or multiplanet systems are plotted beside the main panel.
April 24, 2025 at 8:11 AM
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astrobiology.bsky.social
Biennial European Astrobiology Conference (BEACON)
astrobiology.com/2025/03/bien... #astrobiology #LPSC2025
Biennial European Astrobiology Conference (BEACON) - Astrobiology
The second Biennial European Astrobiology Conference (BEACON)
astrobiology.com
March 14, 2025 at 5:48 PM
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astrobiology.bsky.social
Towards High Precision Mass Measurements of Two Sub-Neptunes in the K2-266 Planetary System Through Transit Timing
astrobiology.com/2025/03/towa... #astrobiology #exoplanet #astronomy
Towards High Precision Mass Measurements of Two Sub-Neptunes in the K2-266 Planetary System Through Transit Timing - Astrobiology
Sub-Neptunes have been found to be one of the most common types of exoplanets
astrobiology.com
March 16, 2025 at 7:30 PM
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astrobiology.bsky.social
SICOAQ 2024: Launching The First Colombian Astrochemistry Symposium In Bogotá
astrobiology.com/2025/03/sico... #astrobiology
SICOAQ 2024: Launching The First Colombian Astrochemistry Symposium In Bogotá - Astrobiology
The First Colombian Astrochemistry Symposium (SICOAQ)
astrobiology.com
March 16, 2025 at 7:30 PM
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astrobiology.bsky.social
Exploring Coronal Abundances Of M dwarfs At Moderate Activity Levels
astrobiology.com/2025/03/expl... #astrobiology #spaceweather #exoplanet
Exploring Coronal Abundances Of M dwarfs At Moderate Activity Levels - Astrobiology
Main sequence stars of spectral types F, G, and K with low to moderate activity levels exhibit a recognizable pattern
astrobiology.com
March 16, 2025 at 7:30 PM
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astrobiology.bsky.social
Signatures of Atmospheric Mass Loss and Planet Migration in the Time Evolution of Short-Period Transiting Exoplanets
astrobiology.com/2025/03/sign... #astrobiology #exoplanet #astronomy
Signatures of Atmospheric Mass Loss and Planet Migration in the Time Evolution of Short-Period Transiting Exoplanets - Astrobiology
Comparative studies of young and old exoplanet populations offer a glimpse into how planets may form and evolve with time.
astrobiology.com
March 17, 2025 at 8:59 PM
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astrobiology.bsky.social
Marsquakes And Meteorites Unveil The Potential For Subterranean Alien Lifeforms On Mars
astrobiology.com/2025/03/mars... #astrobiology #astrogeology #mars
Marsquakes And Meteorites Unveil The Potential For Subterranean Alien Lifeforms On Mars - Astrobiology
Are subterranean lifeforms viable on Mars?
astrobiology.com
March 18, 2025 at 5:17 PM
Reposted
astrobiology.bsky.social
Planets And Planetesimals At Cosmic Dawn: Vortices As Planetary Nurseries
astrobiology.com/2025/03/plan... #astrobiology #astronomy #astrochemistry
Planets And Planetesimals At Cosmic Dawn: Vortices As Planetary Nurseries - Astrobiology
Low-mass, metal-enriched stars were likely present as early as cosmic dawn. In this work, we investigate whether these stars could have hosted planets in their protoplanetary disks.
astrobiology.com
March 19, 2025 at 5:11 PM
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astrobiology.bsky.social
A Molecule-rich Torus-like Structure In The 21 μm Source IRAS 23304+6147
astrobiology.com/2025/03/a-mo... #astrobiology #astronomy #astrochemistry
A Molecule-rich Torus-like Structure In The 21 μm Source IRAS 23304+6147 - Astrobiology
A long-standing enigma in observational astronomy is the identification of the so-called 21 μm feature in a subset of envelopes of post-asymptotic giant branch (post-AGB) stars.
astrobiology.com
March 19, 2025 at 5:11 PM
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astrobiology.bsky.social
The Impact Of Stellar Flares On The Atmospheric Escape of Exoplanets Orbiting M stars I: Insights From The AU Mic System
astrobiology.com/2025/03/the-... #astrobiology y #astronomy #astrochemistry #Spaceweather
The Impact Of Stellar Flares On The Atmospheric Escape of Exoplanets Orbiting M stars I: Insights From The AU Mic System - Astrobiology
The X-rays and Extreme Ultraviolet (XUV) emission from M stars can drive the atmospheric escape on planets orbiting them. M stars are also known for their frequent emission of stellar flares, which wi...
astrobiology.com
March 19, 2025 at 5:12 PM
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astrobiology.bsky.social
Martian Dust And Future Human Space Exploration
astrobiology.com/2025/03/mart... #Astrobiology #Mars #Spacemedicine #AwayTeam
Martian Dust And Future Human Space Exploration - Astrobiology
The challenges of human space exploration produce some of humanity's greatest technological and scientific advances
astrobiology.com
March 19, 2025 at 11:52 PM
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astrobiology.bsky.social
JWST-TST High Contrast: Living on the Wedge, or, NIRCam Bar Coronagraphy Reveals CO2 in the HR 8799 and 51 Eri Exoplanets' Atmospheres
astrobiology.com/2025/03/jwst...
JWST-TST High Contrast: Living on the Wedge, or, NIRCam Bar Coronagraphy Reveals CO2 in the HR 8799 and 51 Eri Exoplanets' Atmospheres - Astrobiology
High-contrast observations with JWST can reveal key composition and vertical mixing dependent absorption features in the spectra of directly imaged planets across the 3-5 μm wavelength range.
astrobiology.com
March 19, 2025 at 11:53 PM
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astrobiology.bsky.social
Four Sub-Earth Planets Orbiting Barnard's Star From MAROON-X And ESPRESSO
astrobiology.com/2025/03/four... #astrobiology #exoplanet #astronomy
Four Sub-Earth Planets Orbiting Barnard's Star From MAROON-X And ESPRESSO - Astrobiology
Barnard’s Star is an old, single M dwarf star that comprises the second-closest extrasolar system. It has a long history of claimed planet detections from both radial velocities and astrometry. Howeve...
astrobiology.com
March 17, 2025 at 8:59 PM
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astrobiology.bsky.social
Ground-Based Reconnaissance Observations Of 21 Exoplanet Atmospheres With The Exoplanet Transmission Spectroscopy Imager
astrobiology.com/2025/03/grou... #astrobiology #exoplanet #astronomy
Ground-Based Reconnaissance Observations Of 21 Exoplanet Atmospheres With The Exoplanet Transmission Spectroscopy Imager - Astrobiology
One of the most prolific methods of studying exoplanet atmospheres is transmission spectroscopy
astrobiology.com
March 17, 2025 at 8:59 PM
Reposted
rockyworlds.bsky.social
Tides? Volcanism? Magnetospheres?! Everyone’s favourite Jupiter moon Io has it all!🌋🧲🌊

On Thu 6 Mar @ 16:00 UTC on Zoom, Katherine de Kleer from @caltech.edu will tell us about Io's tidally-driven volcanism & mass loss at the next #RockyWorldsDiscussion 🧪🔭

More: www.rockyworlds.org/event-detail...
Image of the speaker, Katherine de Kleer. She is smiling at the camera and her arms are crossed. She is wearing a short-sleeved red shirt and is leaning against a concrete wall. Jupiter's moon Io, its night side illuminated by reflected sunlight from Jupiter, or "Jupitershine." Image data: NASA/JPL-Caltech/SwRI/MSSS Image processing by Emma Wälimäki © CC BY.
February 28, 2025 at 7:43 PM
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rockyworlds.bsky.social
📢 Reminder: this talk is happening later TODAY (Thursday)!

Sign up to our mailing list to access the Zoom-link, or watch it live on our YouTube channel 🔭☄️🧪

16:00 UTC = 17:00 CET = 11:00 EST = 08:00 PST = 01:00 (+1d) JST
rockyworlds.bsky.social Rocky Worlds Meetings @rockyworlds.bsky.social · Feb 28
Tides? Volcanism? Magnetospheres?! Everyone’s favourite Jupiter moon Io has it all!🌋🧲🌊

On Thu 6 Mar @ 16:00 UTC on Zoom, Katherine de Kleer from @caltech.edu will tell us about Io's tidally-driven volcanism & mass loss at the next #RockyWorldsDiscussion 🧪🔭

More: www.rockyworlds.org/event-detail...
Image of the speaker, Katherine de Kleer. She is smiling at the camera and her arms are crossed. She is wearing a short-sleeved red shirt and is leaning against a concrete wall. Jupiter's moon Io, its night side illuminated by reflected sunlight from Jupiter, or "Jupitershine." Image data: NASA/JPL-Caltech/SwRI/MSSS Image processing by Emma Wälimäki © CC BY.
March 6, 2025 at 11:22 AM
Reposted
astrobiology.bsky.social
Fossil Microorganisms In Messinian Gypsum: Implications For The Search For Life On Mars
astrobiology.com/2025/03/foss... #astrobiology #microfossil #biosignature #Mars
Fossil Microorganisms In Messinian Gypsum: Implications For The Search For Life On Mars - Astrobiology
Researchers have made significant progress in astrobiology. In a recently published study, they were able to detect fossil microorganisms in Messinian gypsum
astrobiology.com
March 1, 2025 at 6:38 PM
Reposted
astrobiology.bsky.social
Cross-Model Validation of Coronagraphic Exposure Time Calculators for the Habitable Worlds Observatory: A Report from the Exoplanet Science Yield sub-Working Group
astrobiology.com/2025/03/cros... #astrobiology #exoplanet #Astronomy #HabitableWorldsObservatory
Cross-Model Validation of Coronagraphic Exposure Time Calculators for the Habitable Worlds Observatory: A Report from the Exoplanet Science Yield sub-Working Group - Astrobiology
Estimating the exoplanet scientific productivity of the Habitable Worlds Observatory requires estimating science exposure times. From exoplanet yields to spectral retrievals, exposure times are at the...
astrobiology.com
March 1, 2025 at 6:38 PM