Results 1 to 10 of about 23,911,148 (396)
The formation of the solar system [PDF]
Physica Scripta, 2015 The solar system started to form about 4.56 Gyr ago and despite the long intervening time span, there still exist several clues about its formation. The three major sources for this information are meteorites, the present solar system structure and the ...
Davies, M. B. +9 more
core +8 more sources
Bifurcation of planetary building blocks during Solar System formation [PDF]
Science, 2021 Two-part formation of the Solar System Measurements of meteorites have shown that the inner and outer Solar System formed from two distinct reservoirs of material.
T. Lichtenberg +4 more
semanticscholar +1 more source
Planetesimal rings as the cause of the Solar System’s planetary architecture [PDF]
Nature Astronomy, 2021 Astronomical observations reveal that protoplanetary disks around young stars commonly have ring- and gap-like structures in their dust distributions. These features are associated with pressure bumps trapping dust particles at specific locations, which ...
A. Izidoro +5 more
semanticscholar +1 more source
A pristine record of outer Solar System materials from asteroid Ryugu’s returned sample
Nature Astronomy, 2022 Volatile and organic-rich C-type asteroids may have been one of the main sources of Earth’s water. Our best insight into their chemistry is currently provided by carbonaceous chondritic meteorites, but the meteorite record is biased: only the strongest ...
Motoo Ito +101 more
semanticscholar +1 more source
Solar system tests in modified teleparallel gravity [PDF]
Journal of Cosmology and Astroparticle Physics, 2020 In this paper, we study different Solar System tests in a modified Teleparallel gravity theory based on an arbitrary function f(T,B) which depends on the scalar torsion T and the boundary term B.
S. Bahamonde, J. Said, M. Zubair
semanticscholar +1 more source
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
doaj +1 more source
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
doaj +1 more source
Solar System Physics for Exoplanet Research [PDF]
Publications of the Astronomical Society of the Pacific, 2020 Over the past three decades, we have witnessed one of the great revolutions in our understanding of the cosmos—the dawn of the Exoplanet Era. Where once we knew of just one planetary system (the solar system), we now know of thousands, with new systems ...
J. Horner +18 more
semanticscholar +1 more source
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
doaj +1 more source
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
doaj +1 more source