Results 21 to 30 of about 1,663,862 (332)

Lévy noise versus Gaussian-noise-induced transitions in the Ghil–Sellers energy balance model [PDF]

Nonlinear Processes in Geophysics, 2022
We study the impact of applying stochastic forcing to the Ghil–Sellers energy balance climate model in the form of a fluctuating solar irradiance. Through numerical simulations, we explore the noise-induced transitions between the competing warm and ...
V. Lucarini, V. Lucarini, V. Lucarini, L. Serdukova, L. Serdukova, G. Margazoglou, G. Margazoglou   +6 more
doaj   +1 more source

The Brahmavarta Initiative: A Roadmap for the First Self-Sustaining City-State on Mars

Universe, 2022
The vast universe, from its unfathomable ends to our very own Milky Way galaxy, is comprised of numerous celestial bodies—disparate yet each having their uniqueness.
Arvind Mukundan, Hsiang-Chen Wang
doaj   +1 more source

A candidate super-Earth planet orbiting near the snow line of Barnard’s star [PDF]

Nature, 2018
Barnard’s star is a red dwarf, and has the largest proper motion (apparent motion across the sky) of all known stars. At a distance of 1.8 parsecs1, it is the closest single star to the Sun; only the three stars in the α Centauri system are closer ...
I. Ribas, M. Tuomi, A. Reiners, R. P. Butler, J. Morales, M. Perger, S. Dreizler, C. Rodríguez-López, J. Hernández, J. Hernández, A. Rosich, F. Feng, T. Trifonov, S. Vogt, J. Caballero, A. Hatzes, E. Herrero, S. Jeffers, M. Lafarga, F. Murgas, F. Murgas, R. Nelson, E. Rodríguez, J. Strachan, L. Tal-Or, L. Tal-Or, J. Teske, B. Toledo-Padrón, B. Toledo-Padrón, M. Zechmeister, A. Quirrenbach, P. Amado, M. Azzaro, V. Béjar, V. Béjar, J. Barnes, Z. Berdiñas, J. Burt, G. Coleman, M. Cortés-Contreras, J. Crane, S. Engle, E. Guinan, C. Haswell, T. Henning, B. Holden, J. Jenkins, H. R. Jones, A. Kaminski, M. Kiraga, M. Kürster, M. Lee, M. López-González, D. Montes, J. Morin, A. Ofir, E. Pallé, E. Pallé, R. Rebolo, R. Rebolo, S. Reffert, A. Schweitzer, W. Seifert, S. Shectman, D. Staab, R. Street, A. Mascareño, A. Mascareño, Y. Tsapras, S. Wang, G. Anglada-Escudé, G. Anglada-Escudé   +71 more
semanticscholar   +1 more source

Geodesy in Japan: legends and highlights

Earth, Planets and Space, 2020
Here, I review modern history of geodesy and geodynamics in Japan, highlighting a few episodes during the last two centuries. The review starts with the first measurement of the meridional arc length in Japan by Tadataka Ino (1745–1818) early in the ...
Kosuke Heki
doaj   +1 more source

Evolution of a Water-rich Atmosphere Formed by a Giant Impact on an Earth-sized Planet

The Astrophysical Journal, 2023
The atmosphere of a terrestrial planet that is replenished with secondary gases should have accumulated hydrogen-rich gas from its protoplanetary disk.
Kenji Kurosaki, Yasunori Hori, Masahiro Ogihara, Masanobu Kunitomo   +3 more
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Water vapour in the atmosphere of the habitable-zone eight-Earth-mass planet K2-18 b [PDF]

Nature Astronomy, 2019
In the past decade, observations from space and the ground have found water to be the most abundant molecular species, after hydrogen, in the atmospheres of hot, gaseous extrasolar planets1–5. Being the main molecular carrier of oxygen, water is a tracer
A. Tsiaras, I. Waldmann, G. Tinetti, J. Tennyson, S. Yurchenko   +4 more
semanticscholar   +1 more source

Planetary system around the nearby M dwarf GJ 357 including a transiting, hot, Earth-sized planet optimal for atmospheric characterization [PDF]

Astronomy & Astrophysics, 2019
We report the detection of a transiting Earth-size planet around GJ 357, a nearby M2.5 V star, using data from the Transiting Exoplanet Survey Satellite (TESS).
R. Luque, E. Pallé, D. Kossakowski, S. Dreizler, J. Kemmer, N. Espinoza, J. Burt, G. Anglada-Escudé, V. Béjar, J. Caballero, K. Collins, K. Collins, M. Cortés-Contreras, E. Díez-Alonso, F. Feng, A. Hatzes, C. Hellier, T. Henning, S. Jeffers, L. Kaltenegger, M. Kürster, J. Madden, K. Molaverdikhani, D. Montes, N. Narita, G. Nowak, A. Ofir, M. Oshagh, H. Parviainen, A. Quirrenbach, S. Reffert, A. Reiners, C. Rodríguez-López, M. Schlecker, S. Stock, T. Trifonov, J. Winn, M. Z. Osorio, M. Zechmeister, P. Amado, D. Anderson, N. Batalha, F. Bauer, P. Bluhm, C. Burke, R. P. Butler, D. Caldwell, Guo Chen, J. Crane, D. Dragomir, C. Dressing, S. Dynes, J. Jenkins, A. Kaminski, H. Klahr, T. Kotani, M. Lafarga, D. Latham, P. Lewin, S. McDermott, P. Montañés-Rodríguez, J. C. Morales, F. Murgas, E. Nagel, S. Pedraz, I. Ribas, G. Ricker, P. Rowden, S. Seager, S. Shectman, Motohide Tamura, J. Teske, J. Twicken, R. Vanderspeck, S. Wang, B. Wohler   +75 more
semanticscholar   +1 more source

Big Earth Data science: an information framework for a sustainable planet

International Journal of Digital Earth, 2020
The digital transformation of our society coupled with the increasing exploitation of natural resources makes sustainability challenges more complex and dynamic than ever before.
Huadong Guo, S. Nativi, Dong Liang, M. Craglia, Lizhe Wang, S. Schade, C. Corbane, G. He, M. Pesaresi, Jianhui Li, Zeeshan Shirazi, Jie Liu, A. Annoni   +12 more
semanticscholar   +1 more source

Modeling Repeated M Dwarf Flaring at an Earth-like Planet in the Habitable Zone: Atmospheric Effects for an Unmagnetized Planet [PDF]

Astrobiology, 2017
Understanding the impact of active M dwarf stars on the atmospheric equilibrium and surface conditions of a habitable zone Earth-like planet is key to assessing M dwarf planet habitability.
M. Tilley, A. Segura, V. Meadows, S. Hawley, J. Davenport   +4 more
semanticscholar   +1 more source

A decade since the International Year of Planet Earth - Earth Sciences for society

Journal of the Geological Survey of Brazil, 2020
Developed between 2007 and 2008, the International Year of Planet Earth (IYPE) was proclaimed by United Nations Organization with the objective to divulge the importance of the Earth Sciences for society and to alert for the main problems mankind will ...
Carlos Oití Berbert
doaj   +1 more source