Habitable Zones & Global Climate

Atmospheric Escape From TOI-700 d: Venus vs. Earth Analogs

Atmospheric Escape From TOI-700 d: Venus vs. Earth Analogs

The recent discovery of an Earth-sized planet (TOI-700 d) in the habitable zone of an early-type M-dwarf by the Transiting Exoplanet Survey Satellite constitutes an important advance.

Habitable Zones & Global Climate

Implications Of Different Stellar Spectra For The Climate Of Tidally-locked Earth-like Exoplanets

Implications Of Different Stellar Spectra For The Climate Of Tidally-locked Earth-like Exoplanets

The majority of potentially habitable exoplanets detected orbit stars cooler than the Sun, and therefore are irradiated by a stellar spectrum peaking at longer wavelengths than that incident on Earth.

SETI

Qualitative Classification of Extraterrestrial Civilizations

Qualitative Classification of Extraterrestrial Civilizations

Abridged: The interest towards searches for extraterrestrial civilizations (ETCs) was boosted by the discovery of thousands of exoplanets. We turn to the classification of ETCs for new considerations that may help to design better strategies for ETCs searches.

Mars

The Detective Aboard NASA's Perseverance Rover

The Detective Aboard NASA's Perseverance Rover

An instrument called SHERLOC will, with the help of its partner WATSON, hunt for signs of ancient life by detecting organic molecules and minerals.

Impact events

Dinosaur-dooming Asteroid Struck Earth At The Deadliest Possible Angle

Dinosaur-dooming Asteroid Struck Earth At The Deadliest Possible Angle

The simulations show that the asteroid hit Earth at an angle of about 60 degrees, which maximised the amount of climate-changing gases thrust into the upper atmosphere.

Proxima Centauri b

Revisiting Proxima With ESPRESSO

Revisiting Proxima With ESPRESSO

We aim to confirm the presence of Proxima b using independent measurements obtained with the new ESPRESSO spectrograph, and refine the planetary parameters taking advantage of its improved precision.

Astrochemistry

A Systematic Study on the Absorption Features of Interstellar Ices in Presence of Impurities

A Systematic Study on the Absorption Features of Interstellar Ices in Presence of Impurities

Spectroscopic studies play a key role in the identification and analysis of interstellar ices and their structure. Some molecules have been identified within the interstellar ices either as pure, mixed, or even as layered structures.

Astrochemistry

Isomers in Interstellar Environments (I): The Case of Z- and E-Cyanomethanimine

Isomers in Interstellar Environments (I): The Case of Z- and E-Cyanomethanimine

In this work, we present the results of our investigation into the chemistry of Z- and E-cyanomethanimine (HNCHCN), both of which are possible precursors to the nucleobase adenine.

Habitable Zones & Global Climate

Tidal Evolution Of Exoplanetary Systems Hosting Potentially Habitable Exoplanets. The cases of LHS-1140 b-c and K2-18 b-c LHS-1140 b-c

Tidal Evolution Of Exoplanetary Systems Hosting Potentially Habitable Exoplanets. The cases of LHS-1140 b-c and K2-18 b-c LHS-1140 b-c

We present a model to study secularly and tidally evolving three-body systems composed by two low-mass planets orbiting a star, in the case where the bodies rotation axes are always perpendicular to the orbital plane.

Radiation

Galactic Cosmic Rays Are Now Available For Biomedical Studies On Earth

Galactic Cosmic Rays Are Now Available For Biomedical Studies On Earth

To better understand and mitigate the health risks faced by astronauts from exposure to space radiation, we ideally need to be able to test the effects of Galactic Cosmic Rays (GCRs) here on Earth under laboratory conditions.

Oceanic Research

Ancient Ocean Oxygen Levels Associated With Changing Atmospheric Carbon Dioxide

Ancient Ocean Oxygen Levels Associated With Changing Atmospheric Carbon Dioxide

Why do carbon dioxide levels in the atmosphere wax and wane in conjunction with the warm and cold periods of Earth's past?

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