Exoplanetary science is a very active field of astronomy nowadays, with questions still opened such as how planetary systems form and evolve (occurrence, process), why such a diversity of exoplanets […]
astro-ph.EP
Posted inBiosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Plant Biology, Status Report, TRAPPIST-1
Oxygenic Photosynthetic Responses Of Cyanobacteria Exposed Under An M-dwarf Starlight Simulator: Implications For Exoplanet’s Habitability
Introduction: The search for life on distant exoplanets is expected to rely on atmospheric biosignatures detection, such as oxygen of biological origin.
Posted inAnalog Studies, Astronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Mid-infrared Spectroscopy Of Planetary Analogs: A Database For Planetary Remote Sensing
The MERTIS (MErcury Radiometer and Thermal Infrared Spectrometer) instrument onboard the ESA/JAXA BepiColombo mission will provide mid-infrared data, which will be crucial to characterize the surface mineralogy of Mercury.
Posted inCallisto, Europa, Ganymede, Icy Worlds, Imaging & Spectroscopy, Space Weather & Heliophysics, Status Report
The Optical Aurorae of Europa, Ganymede and Callisto
The tenuous atmospheres of the Galilean satellites are sourced from their surfaces and produced by a combination of plasma-surface interactions and thermal processes. Though thin, these atmospheres can be studied […]
Posted inAtmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report, Venus
The Earth-sized Exoplanet Next Door: The Venus Cloud Discontinuity in 2022
First identified in 2016 by JAXA’s Akatsuki mission, the discontinuity/disruption is a recurrent wave observed to propagate during decades at the deeper clouds of Venus (47–56 km above the surface), […]
Posted inEuropa, Icy Worlds, Missions & Hardware, Status Report, Water/Hycean Worlds & Oceanography
In-situ Detection Of Europa’s Water Plumes Is Harder Than Previously Thought
Europa’s subsurface ocean is a potential candidate for life in the outer solar system. It is thought that plumes may exist which eject ocean material out into space, which may […]
Posted inExoplanets, -moons, -comets, Habitable Zones, Status Report
The Dynamical Consequences Of A Super-Earth In The Solar System
Placing the architecture of the Solar System within the broader context of planetary architectures is one of the primary topics of interest within planetary science. Exoplanet discoveries have revealed a […]
Posted inAtmospheres, Climate, Weather, Exoplanets, -moons, -comets, Extinction events, Habitable Zones, Impact events, Press Release
About The Loss Of A Primordial Atmosphere Of Super-Earths By Planetesimal Impacts
We consider planets composed of water ice and rock, located far from a central star. In an earlier study, computing the growth of planets by continuous accretion, we found that […]
Posted inAtmospheres, Climate, Weather, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report, Venus
Synergies Between Venus And Exoplanetary Observations
In this chapter we examine how our knowledge of present day Venus can inform terrestrial exoplanetary science and how exoplanetary science can inform our study of Venus. In a superficial […]
Posted inAtmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report
Presence Of Liquid Water During The Evolution Of Exomoons Orbiting Ejected Free-floating Planets
Free-floating planets (FFPs) can result from dynamical scattering processes happening in the first few million years of a planetary system’s life.