Astrochemistry
Efficient Formation Pathway Of Methyl Formate: The Role Of OH Radicals On Ice Dust 
Three structural isomers of the C2H4O2 molecule, namely, methyl formate (MF; HCOOCH3), acetic acid (AA; CH3COOH), and glycol aldehyde (GA; HOCH2CHO), have attracted considerable attention as targets for understanding pathways towards molecular complexity in the interstellar medium (ISM).
Geobiology
Retention Of Water In Terrestrial Magma Oceans And Carbon-rich Early Atmospheres
Massive steam and CO2 atmospheres have been proposed for magma ocean outgassing of Earth and terrestrial planets.
Astrochemistry
Discovery Of Two Isomers Of Ethynyl Cyclopentadiene In TMC-1: Abundances of CCH And CN Derivatives Of Hydrocarbon Cycles
We report the detection of two isomers of ethynyl cyclopentadiene (c-C5H5CCH), namely 1- and 2-ethynyl-1,3-cyclopentadiene, in the direction of TMC-1.
Titan
ASTrAEUS: An Aerial-Aquatic Titan Mission Profile
Key questions surrounding the origin and evolution of Titan and the Saturnian system in which it resides remain following the Cassini-Huygens mission.
Astrochemistry
Formation Of Complex Organic Molecules In Hot Molecular Cores Through Nondiffusive Grain-surface And ice-mantle Chemistry
A new, more comprehensive model of gas-grain chemistry in hot molecular cores is presented, in which nondiffusive reaction processes on dust-grain surfaces and in ice mantles are implemented alongside traditional diffusive surface/bulk-ice chemistry.
Ceres
Traces of Ceres' Icy Crust Found at Occator Crater
Anomalies in the distribution of hydrogen at Occator crater on the dwarf planet Ceres reveal an icy crust, says a new paper led by Tom Prettyman, a Senior Scientist at the Planetary Science Institute.
Titan
Titan's River Maps May Advise Dragonfly's Sedimental Journey
With future space exploration in mind, a Cornell-led team of astronomers has published the final maps of Titan's liquid methane rivers and tributaries - as seen by NASA's late Cassini mission - so that may help provide context for Dragonfly's upcoming 2030s expedition.
Astrobiology (general)
The Fine-Tuning of the Universe for Life
When a physicist says that a theory is fine-tuned, they mean that it must make a suspiciously precise assumption in order to explain a certain observation.
Astrochemistry
Chirality in Astrophysics
Chirality, or handedness, enters astrophysics in three distinct ways. Magnetic field and vortex lines tend to be helical and have a systematic twist in the northern and southern hemispheres of a star or a galaxy.
Venus
Day-night Cloud Asymmetry Prevents Early Oceans On Venus But Not On Earth
Earth has had oceans for nearly four billion years and Mars had lakes and rivers 3.5-3.8 billion years ago. However, it is still unknown whether water has ever condensed on the surface of Venus because the planet - now completely dry - has undergone global resurfacing events that obscure most of its history.
Astrobiology (general)
Letter to the Astrobiology Community: Strengthening Inclusion, Diversity, Equity, & Accessibility
Dear Astrobiology Community: We at NASA Astrobiology are continuing to prioritize thoughts and efforts in justice, equity, and belonging. We are seeking your inputs at this time on several fronts toward building momentum for growth, change, and action... for ourselves and our beloved community.
More top stories from October.
Recent Releases
Recent Status Reports
Calendar
- 20 Oct: Hearing: Accelerating Deep Space Travel with Space Nuclear Propulsion
- 21 Oct: NASA Earth Science Division Community Forum
- 22 Oct: Space For Humanity Webinar: Exploring Space Perspectives The Overview Effect & Humanity's Future
- 26 Oct: What makes a planet habitable?
- 27 Oct: NASA Heliophysics Advisory Committee Meeting
- 2 Nov: ISS National Lab User Advisory Committee to Host Introductory Meeting
- 3 Nov: 24th Annual FAA Commercial Space Transportation Conference
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