Extrasolar Planets
Planets Of Binary Stars As Possible Homes For Alien Life 
Nearly half of Sun-size stars are binary. According to University of Copenhagen research, planetary systems around binary stars may be very different from those around single stars. This points to new targets in the search for extraterrestrial life forms.
Fossils
Discovery Of 'Ghost' Fossils Reveals Plankton Resilience To Past Global Warming Events
An international team of scientists from UCL (University College London), the Swedish Museum of Natural History, Natural History Museum (London) and the University of Florence have found a remarkable type of fossilisation that has remained almost entirely overlooked until now.
Enceladus
Particle Deposition On The Saturnian Satellites From Ephemeral Cryovolcanism On Enceladus
The geologically active south pole of Enceladus generates a plume of micron-sized particles, which likely form Saturn's tenuous E-ring extending from the orbit of Mimas to Titan.
Extrasolar Planets
The Need For A Public Forecast Of Stellar Activity To Optimise Exoplanet Radial Velocity Detections And Transmission Spectroscopy
Advances in high-precision spectrographs have paved the way for the search for an Earth analogue orbiting a Sun-like star within its habitable zone.
Venus
Venus As An Exoplanet: I. An Initial Exploration Of The 3-D Energy Balance For A CO2 Exoplanetary Atmosphere Around An M-Dwarf Star
The chemical evolution of an exoplanetary Venus-like atmosphere is dependent upon the ultraviolet to near ultraviolet (FUV-NUV) radiation ratio from the parent star, the balance between CO2 photolysis and recombination via reactions that depend on the water abundance, and various catalytic chemical cycles.
Extrasolar Planets
Trends In Silicates In The β Pictoris Disk
While beta Pic is known to host silicates in ring-like structures, whether the properties of these silicate dust vary with stellocentric distance remains an open question.
Extrasolar Planets
Pandora: A Fast Open-source Exomoon Transit Detection Algorithm
We present Pandora, a new software to model, detect, and characterize transits of extrasolar planets with moons in stellar photometric time series.
Space Weather
Space Weather-driven Variations in Lyα Absorption Signatures of Exoplanet Atmospheric Escape: MHD Simulations and the Case of AU Mic b
We simulate the space environment around AU Microscopii b and the interaction between the magnetized stellar wind with a planetary atmospheric outflow for ambient stellar wind conditions and Coronal Mass Ejection (CME) conditions.
Microbiology
830 Million Year Old Microorganisms In Primary Fluid Inclusions In Halit
Primary fluid inclusions in bedded halite from the 830-m.y.-old Browne Formation of
central Australia contain organic solids and liquids, as documented with transmitted light and ultraviolet-visible (UV-vis) petrography.
Biosignatures & Paleobiology
The Futility of Exoplanet Biosignatures
The ultimate goal of astrobiology is to determine the distribution and diversity of life in the universe. But as the word "biosignature" suggests, what will be detected is not life itself, but an observation implicating a particular process associated with living systems.
Panspermia
Transfer Of Rocks Between Planetary Systems: Panspermia Revisited
Motivated by the recent discovery of interstellar objects passing through the solar system, and by recent developments in dynamical simulations, this paper reconsiders the likelihood for life bearing rocks to be transferred from one planetary system to another.
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