The search for life on exoplanets is motivated by the universal ways in which life could
modify its planetary environment. Atmospheric gases such as oxygen and methane are …

The discovery and characterization of Earth-sized planets that are in, or near, a tidally locked
state are of crucial importance to understanding terrestrial planet evolution. For this purpose …

The Coronagraph Instrument (CGI) on the Nancy Grace Roman Space Telescope will
demonstrate the highcontrast technology necessary for visible-light exoplanet imaging and …

The earliest atmospheres of rocky planets originate from extensive volatile release during
magma ocean epochs that occur during assembly of the planet. These establish the initial …

Technosignatures refer to observational manifestations of technology that could be detected
through astronomical means. Most previous searches for technosignatures have focused on …

L'exoplanétologie est un domaine très actif de l'astronomie moderne avec des questions
encore ouvertes: comment les systèmes planétaires se forment-ils et évoluent-ils; pourquoi …

Oxygen is a promising exoplanet biosignature due to the evolutionary advantage conferred
by harnessing starlight for photosynthesis, and the apparent low likelihood of maintaining …

The unparalleled theoretical performance of an ideal vector vortex coronagraph makes it
one of the most promising technologies for directly imaging exoplanets with a future, off-axis …

Giant exoplanets on wide orbits have been directly imaged around young stars. If the
thermal background in the mid-infrared can be mitigated, then exoplanets with lower masses …

The" liquid water habitable zone"(HZ) concept is predicated on the ability of the silicate
weathering feedback to stabilize climate across a wide range of instellations. However …