Results 1 to 10 of about 148,163 (169)
THE SOLAR SYSTEM AS AN EXOPLANETARY SYSTEM [PDF]
The Astrophysical Journal, 2015 With the availability of considerably more data, we revisit the question of how special our Solar System is, compared to observed exoplanetary systems. To this goal, we employ a mathematical transformation that allows for a meaningful, statistical comparison.
Rebecca G. Martin, Mario Livio
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Metal-rich stars are less suitable for the evolution of life on their planets
Nature Communications, 2023 Atmospheric ozone and oxygen protect the terrestrial biosphere against harmful ultraviolet (UV) radiation. Here, we model atmospheres of Earth-like planets hosted by stars with near-solar effective temperatures (5300 to 6300 K) and a broad range of ...
Anna V. Shapiro +9 more
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Simplified Relations for the Martian Night-Time OH* Suitable for the Interpretation of Observations
Remote Sensing, 2022 Observations of excited hydroxyl (OH*) emissions are broadly used for inferring information about atmospheric dynamics and composition. We present several analytical approximations for characterizing the excited hydroxyl layer in the Martian atmosphere ...
Mykhaylo Grygalashvyly +4 more
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Earth and Space Science, 2023 In this paper we describe a method to compute spatial scales for images acquired by NASA's Mars Curiosity rover (Mars Science Laboratory, MSL). The method is based on the assumption that the rover stands on an infinite plane that may have any orientation
Walter Goetz +4 more
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Brine residues and organics in the Urvara basin on Ceres
Nature Communications, 2022 The authors report the discovery of salts and fresh organic-rich exposures in the Urvara basin, possibly linked to a late resurfacing of the crater floor. These results are consistent with a deep-seated brine/salt reservoir in the crust of Ceres.
A. Nathues +8 more
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Energies, 2021 The effects of doping manganese ions into a cerium oxide lattice for a thermochemical two-step water-splitting cycle to produce oxygen and hydrogen and new synthesis methods were experimentally investigated.
Hyun-Seok Cho +4 more
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Planetary and Space Science, 1998 Abstract This article presents a synthesis of the properties of Titan as they are understood at the present time and calls attention to some significant mysteries and apparent contradictions which may be resolved by work in progress and anticipated new data. Its purpose, in the year of the launch of the Cassini–Huygens mission to Saturn and Titan, is
Taylor, F, Coustenis, A
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The origin of the solar system [PDF]
Journal of the Franklin Institute, 1924 The astronomer of to-day has at his disposal telescopes which range in aperture from his naked eye, of aperture about one-fifth of an inch, up to the giant Mount Wilson telescope of more than 100 inches. If we lived in the midst of a uniform infinite field of stars, or in a field which was uniform as far as our telescopes could reach, the numbers of ...
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Earth and Space Science, 2023 Future exploration efforts of the Moon, Mars, and other bodies are poised to focus heavily on persistent and sustainable survey and research efforts, especially given the recent interest in a long‐term sustainable human presence at the Moon. Key to these
Prabal Saxena +14 more
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