Studying exoplanet atmospheres is essential for assessing their potential to host liquid water and their capacity to support life (their habitability).
Water/Hycean Worlds & Oceanography
Ignan Earths: Habitability of Terrestrial Planets With Extreme Internal Heating
Is it possible for a rocky planet to have too much internal heating to maintain a habitable surface environment? In the Solar System, the best example of a world with […]
Heating Our Home World: NASA Confirms 2024 Was The Warmest Year on Record
Earth’s average surface temperature in 2024 was the warmest on record, according to an analysis led by NASA scientists.
Nominations Sought For The Habitable Worlds Observatory Community Science and Instrument Team
Dear Colleagues: NASA is soliciting self-nominations from interested individuals to participate as members of the Habitable Worlds Observatory (HWO) Community Science and Instrument Team (CSIT). As recommended by the 2020 […]
TOI-421 b: A Hot Sub-Neptune with a Haze-Free, Low Mean Molecular Weight Atmosphere
Common features of sub-Neptunes atmospheres observed to date include signatures of aerosols at moderate equilibrium temperatures (~500-800 K), and a prevalence of high mean molecular weight atmospheres, perhaps indicating novel […]
NASA SMD ROSES-24 Update: Interdisciplinary Consortia for Astrobiology Research ICAR Step-2 Proposal Due Date Extended
C.20 Interdisciplinary Consortia for Astrobiology Research (ICAR) seeks proposals focused on ensuring that the NASA Astrobiology community is prepared to respond to the challenge of planning and implementing these missions.
Ice World Update: Marked Decrease in Arctic Pressure Ridges
In the Arctic, the old, multiyear ice is increasingly melting, dramatically reducing the frequency and size of pressure ridges. These ridges are created when ice floes press against each other […]
Superhabitable Planets Around Mid-Type K Dwarf Stars Enhance Simulated JWST Observability and Surface Habitability
In our search for life beyond the Solar System, certain planetary bodies may be more conducive to life than Earth. However, the observability of these `superhabitable’ planets in the habitable […]
Formation of Super-Earths and Mini-Neptunes From Rings of Planetesimals
The solar system planetary architecture has been proposed to be consistent with the terrestrial and giant planets forming from material rings at ~1 au and ~5 au, respectively.
Online Meeting: Ocean Worlds Observations: Europa Clipper Instruments & Earth Mission Analogs
Wednesday, January 8th at 3PM ET / 12PM PT
