Results 51 to 60 of about 15,081 (214)

The single beacon: progresses in understanding Earth as an exoplanet using DSCOVR/EPIC observations

Frontiers in Remote Sensing
Almost 6000 exoplanets have thus far been confirmed, revolutionizing our understanding of planetary habitability. Yet, despite the identification of Earth-like exoplanets, definitive evidence of extraterrestrial life remains elusive.
Xun Jian, Xun Jian, Lixiang Gu, Siteng Fan, Stuart J. Bartlett, Jiani Yang, Jonathan H. Jiang, Yangcheng Luo, Yuk L. Yung, Yuk L. Yung   +9 more
doaj   +1 more source

The MUSCLES Extension for Atmospheric Transmission Spectroscopy: UV and X-Ray Host-star Observations for JWST ERS & GTO Targets

The Astronomical Journal, 2023
X-ray through infrared spectral energy distributions (SEDs) are essential for understanding a star’s effect on exoplanet atmospheric composition and evolution. We present a catalog of panchromatic SEDs, hosted on the Barbara A. Mikulski Archive for Space
Patrick R. Behr, Kevin France, Alexander Brown, Girish Duvvuri, Jacob L. Bean, Zachory Berta-Thompson, Cynthia Froning, Yamila Miguel, J. Sebastian Pineda, David J. Wilson, Allison Youngblood   +10 more
doaj   +1 more source

Follow-Up and Validation of K2 and TESS Planetary Systems With Keck NIRC2 Adaptive Optics Imaging

Frontiers in Astronomy and Space Sciences, 2021
High resolution imaging (HRI) is a critical part of the transiting exoplanet follow-up and validation process. HRI allows previously unresolved stellar companions and background blends to be resolved, vetting false positive signals and improving the ...
Joshua E. Schlieder, Erica J. Gonzales, David R. Ciardi, Rahul I. Patel, Ian J. M. Crossfield, Justin R. Crepp, Courtney D. Dressing, Thomas Barclay, Thomas Barclay, Andrew W. Howard   +9 more
doaj   +1 more source

The Power of a Name: Toward a Unified Approach to Naming Space Weather Events

Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.
Abstract Our increasing reliance on technology vulnerable to space weather effects underscores the urgent need for effective public communication about these phenomena. While scientific research thrives on precise technical language, broader public engagement necessitates a more accessible and memorable approach.
Sophie Chabanski, Felix de Montety, Jean Lilensten, Stefaan Poedts, Luca Spogli   +4 more
wiley   +1 more source

A fresh look into the interaction of exoplanets magnetosphere with stellar winds using MHD simulations

Frontiers in Astronomy and Space Sciences
Numerous numerical studies have been carried out in recent years that simulate different aspects of exoplanets’ magnetosphere and stellar winds. These studies have focused primarily on hot Jupiters with sun-like stars. This study addresses the challenges
Fatemeh Bagheri, Fatemeh Bagheri, Ramon Lopez, Kevin Pham   +3 more
doaj   +1 more source

Evolutionary and functional relationships between plant and microbial C1 metabolism in terrestrial ecosystems

New Phytologist, Volume 248, Issue 3, Page 1132-1153, November 2025.
Summary One‐carbon (C1) metabolism, centered on the universal methyl donor S‐adenosyl methionine (SAM), plays critical roles in biosynthesis, redox regulation, and stress responses across plants and microbes. A recently proposed photosynthetic C1 pathway links SAM methyl groups directly to RuBisCO‐mediated CO2 assimilation and integrates with nitrogen ...
Kolby J. Jardine, Linnea K. Honeker, Zhaoxin Zhang, Steve Kwatcho Kengdo, Yuguo Yang, Joseph Roscioli, William J. Riley   +6 more
wiley   +1 more source

Molecular opacities for exoplanets [PDF]

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2014
Spectroscopic observations of exoplanets are now possible by transit methods and direct emission. Spectroscopic requirements for exoplanets are reviewed based on existing measurements and model predictions for hot Jupiters and super-Earths.
Peter F. Bernath, Peter F. Bernath
openaire   +4 more sources

L'ADIEU AU RÉFÉRENT [PDF]

Diversitate si Identitate Culturala in Europa, 2016
Exoplanets, discovered by Mayor and Queloz, have changed our definition of the word planet. Nowadays, nobody can defin precisely this term. Study this exemple shows that the referential sense is neither in words, nor in the head, but in a linguistic use,
François GAUDIN
doaj  

Der Ursprung der Bausteine des Lebens auf der Erde im Hadaikum

Angewandte Chemie, Volume 137, Issue 42, October 13, 2025.
Der Ursprung des Lebens im Hadaikum erforderte die Bildung von Aminosäuren und Nukleosiden als Schlüsselmoleküle des Lebens. In einer oft postulierten stark reduzierenden Atmosphäre bilden sich HCN und seine Derivate robust als plausible Ausgangsstoffe. Aber HCN bildet sich nicht in der schwach reduzierenden Atmosphäre des Hadaikums.
Nikolai Diukarev, Erik Boinowitz, Jonas Feldmann, Stefan Wiedemann, Aleksandr Mikheev, Sidney Becker, Thomas Carell   +6 more
wiley   +1 more source

The NASA Exoplanet Archive: Data and Tools for Exoplanet Research [PDF]

Publications of the Astronomical Society of the Pacific, 2013
We describe the contents and functionality of the NASA Exoplanet Archive, a database and tool set funded by NASA to support astronomers in the exoplanet community. The current content of the database includes interactive tables containing properties of all published exoplanets, Kepler planet candidates, threshold-crossing events, data validation ...
Akeson, R. L., Chen, X., Ciardi, D., Crane, M., Good, J., Harbut, M., Jackson, E., Kane, S. R., Laity, A. C., Leifer, S., Lynn, M., McElroy, D. L., Papin, M., Plavchan, P., Ramirez, S. V., Rey, R., von Braun, K., Wittman, M., Abajian, M., Ali, B., Beichman, C., Beekley, A., Berriman, G. B., Berukoff, S., Bryden, G., Chan, B., Groom, S., Lau, C., Payne, A. N., Regelson, M., Saucedo, M., Schmitz, M., Stauffer, J., Wyatt, P., Zhang, A.   +34 more
openaire   +4 more sources