Habitable Zones & Global Climate
Optimizing Ground-based Observations of O2 in Earth Analogs 
We present the result of calculations to optimize the search for molecular oxygen (O2) in Earth analogs transiting around nearby, low-mass stars using ground-based, high-resolution, Doppler shift techniques.
Habitable Zones & Global Climate
The Pressure and Temperature Limits of Likely Rocky Exoplanets
The interior composition of exoplanets is not observable, limiting our direct knowledge of their structure, composition, and dynamics.
Astrochemistry
Extension of the HCOOH and CO2 Solid-state Reaction Network During The CO Freeze-out Stage: Inclusion of H2CO
Formic acid (HCOOH) and carbon dioxide (CO2) are simple species that have been detected in the interstellar medium.
Habitable Zones & Global Climate
VPLanet: The Virtual Planet Simulator
We describe a software package called VPLanet that simulates fundamental aspects of planetary system evolution over Gyr timescales, with a focus on investigating habitable worlds.
Habitable Zones & Global Climate
Kepler-62f: Kepler's First Small Planet in the Habitable Zone, but Is It Real?
Kepler-62f is the first exoplanet small enough to plausibly have a rocky composition orbiting within the habitable zone (HZ) discovered by the Kepler Mission.
Extrasolar Planets
Discovery and Characterization of Kepler-36b
We describe the circumstances that led to the discovery of Kepler-36b, and the subsequent characterization of its host planetary system.
Extrasolar Planets
Validation of a Temperate Fourth Planet in the K2-133 Multi-planet System
We present follow-up observations of the K2-133 multi-planet system. Previously, we announced that K2-133 contained three super-Earths orbiting an M1.5V host star - with tentative evidence of a fourth outer-planet orbiting at the edge of the temperate zone.
Astrochemistry
Solid-state Formation In A H3CCCH + OH Cocktail Under Dark Cloud Conditions
A number of recent experimental studies have shown that solid-state complex organic molecules (COMs) can form under conditions that are relevant to the CO freeze-out stage in dense clouds.
Space Weather
Impact of Space Weather on Climate and Habitability of Terrestrial Type Exoplanets
The current progress in the detection of terrestrial type exoplanets has opened a new avenue in the characterization of exoplanetary atmospheres and in the search for biosignatures of life with the upcoming ground-based and space missions.
Astronomy
Detection Limits of Exoplanetary Atmospheres With 2-m Class Telescopes
Transmission spectroscopy is an important technique to probe the atmospheres of exoplanets.
Habitable Zones & Global Climate
General Circulation Model for Simulations of Diverse Planetary Atmospheres: Exoplanet GJ 1132b
Exploring diverse planetary atmospheres requires modeling tools that are both accurate and flexible.
More top stories from May.
Recent Releases
Recent Status Reports
Calendar
- 21 May: Ocean Worlds 2019
- 21 May: NASA Advisory Council Science Committee Meeting
- 21 May: STA briefing w Tom Stafford, Commander Apollo 10
- 22 May: STA luncheon w Sylvain Laporte, President, Canadian Space Agency
- 28 May: NASA Advisory Council Human Exploration and Operations Committee Meeting
- 30 May: NASA Advisory Council Meeting
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