Results 41 to 50 of about 82,988 (172)

The Great Cosmic Silence: What Does the Fermi Paradox Tell About the Future of Humanity?

Global Policy, Volume 17, Issue 4, Page 553-565, September 2026.
ABSTRACT This article examines how institutional time horizons shape the long‐term survival prospects of human technological civilisation. While research on global catastrophic and existential risks has expanded, the temporal structures of political‐economic institutions remain underexamined.
Heikki Patomäki
wiley   +1 more source

Modeling Atmospheric Lines by the Exoplanet Community (MALBEC) Version 1.0: A CUISINES Radiative Transfer Intercomparison Project

The Planetary Science Journal
Radiative transfer (RT) models are critical in the interpretation of exoplanetary spectra, in simulating exoplanet climates, and when designing the specifications of future flagship observatories.
Geronimo L. Villanueva, Thomas J. Fauchez, Vincent Kofman, Eleonora Alei, Elspeth K. H. Lee, Estelle Janin, Michael D. Himes, Jérémy Leconte, Michaela Leung, Sara Faggi, Mei Ting Mak, Denis E. Sergeev, Thea Kozakis, James Manners, Nathan Mayne, Edward W. Schwieterman, Alex R. Howe, Natasha Batalha   +17 more
doaj   +1 more source

Reanalysis of SKR Source Crossed by Cassini: Loss Cone Electrons as a Secondary Source of Free Energy

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Saturn's Kilometric Radiation (SKR) is a powerful non‐thermal radio auroral emission produced by the Cyclotron Maser Instability (CMI), which generates waves close to the local cyclotron frequency in a highly magnetized plasma from mildly relativistic electrons.
B. Collet, L. Lamy, Y. Kasaba, N. Andre
wiley   +1 more source

Haze Evolution in Temperate Exoplanet Atmospheres Through Surface Energy Measurements

, 2021
International audiencePhotochemical hazes are important opacity sources in temperate exoplanet atmospheres, hindering current observations from characterizing exoplanet atmospheric compositions.
Moran, Sarah E, Moses, Julianne, I, Moran, Sarah, E, Fortney, Jonathan J, Moses, Julianne,, Valenti, Jeff, A, Fortney, Jonathan, J, Morley, Caroline, V, Gao, Peter, Valenti, Jeff,, Moses, Julianne I, Kempton, R, Kempton, Eliza R, Dymont, Austin, H, Vuitton, Véronique, Moran, Sarah,, Dymont, Austin H, Kempton, Eliza M-R, Mcguiggan, Patricia, Lewis, Nikole,, He, Chao, Fortney, Jonathan,, Morley, Caroline,, Dymont, Austin,, Yu, Xinting, Hörst, Sarah,, Zhang, Xi, Morley, Caroline V, Hörst, Sarah M, Hörst, Sarah, M, Powell, Diana, Valenti, Jeff A, Lewis, Nikole, K, Lewis, Nikole K   +33 more
core   +1 more source

The Thermal Emission Spectrum of the Nearby Rocky Exoplanet LTT 1445A b from JWST MIRI/LRS

The Astronomical Journal
The nearby transiting rocky exoplanet LTT 1445A b presents an ideal target for studying atmospheric retention in terrestrial planets orbiting M dwarfs.
Patcharapol Wachiraphan, Zachory K. Berta-Thompson, Hannah Diamond-Lowe, Jennifer G. Winters, Catriona Murray, Michael Zhang, Qiao Xue, Caroline V. Morley, Marialis Rosario-Franco, Girish M. Duvvuri   +9 more
doaj   +1 more source

The ORCA‐TWIN qCMOS Experiment I. Science Case and Commissioning at Calar Alto Observatory

Astronomische Nachrichten, Volume 347, Issue 7, August 2026.
ABSTRACT We describe a pilot study to explore a new generation of fast and low noise CMOS image sensors for time domain astronomy, using two remote telescopes with a baseline of 1635 km. The experiment involves direct imaging with novel qCMOS image sensor technology that combines fast readout with sub‐electron readout noise.
Martin M. Roth, Paško Roje, Stella Vješnica, Stefan Cikota, Alex J. Brown, Mike Kretlow, Marco Azzaro, Santiago Reinhart, Jesús Aceituno, Harry Dawson, Carsten Denker, Torsten Enßlin, Stephan Geier, Thomas Granzer, Thomas Kupfer, Gianluca Li Causi, Samaya Nissanke, José Luis Ortiz, Fernando Pedichini, Katja Poppenhäger, Axel Schwope   +20 more
wiley   +1 more source

Chemical modeling of exoplanet atmospheres

, 2014
International audienceThe past twenty years have revealed the diversity of planets that exist in the Universe. It turned out that most of exoplanets are different from the planets of our Solar System and thus, everything about them needs to be explored ...
O. Venot, Agúndez, M., Venot, O., M. Agúndez, Venot, Olivia, Agúndez, Marcelino   +5 more
core   +1 more source

Massive Rocky Planets May Suppress Deep Melting

AGU Advances, Volume 7, Issue 4, August 2026.
Abstract Melting properties of silicates are critical to understanding the thermal evolution of rocky planetary interiors. In the deep mantles of massive rocky planets, post‐post‐spinel Mg2SiO4 ${\text{Mg}}_{2}{\text{SiO}}_{4}$ is potentially one of the most abundant mineral phases, yet its melting behavior remains unconstrained. Here, we determine the
Donghao Zheng, Yihang Peng, Jie Deng
wiley   +1 more source

dfm/exoplanet: exoplanet v0.1.0

, 2018
<p>The first public release of exoplanet.</p ...
Dan Foreman-Mackey, Geert Barentsen
core   +1 more source

Towards Generalized Characterization of Exoplanet Atmospheres with Transit Spectroscopy [PDF]

, 2021
The field of exoplanetary sciences has grown from an era of detection to one of characterization. To date, over 4000 exoplanets have been discovered and over 50 of them have been observed with primary transit spectroscopy methods.

core   +2 more sources