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We investigate the prospects for the past or current existence of habitable conditions deep underneath the surfaces of the Moon and Mars as well as generic bound and free-floating extrasolar rocky objects. We construct a simple model that…

Earth and Planetary Astrophysics · Physics 2020-09-23 Manasvi Lingam , Abraham Loeb

Index of proportionality of atomic weights of chemical elements is proposed for determining the relative age of minerals and rocks. Their chemical analysis results serve to be initial data for calculations. For rocks of different…

Geophysics · Physics 2012-12-13 Mikhail M. Labushev , Alexander N. Khokhlov

Aims: The effects of rotation and magnetic fields on the surface abundances of solar-type stars are studied in order to investigate whether the reported difference in lithium content of exoplanet-host stars can be related to their…

Solar and Stellar Astrophysics · Physics 2015-05-20 P. Eggenberger , A. Maeder , G. Meynet

The shell bound by the Karman line at a height of 80 to 100km above the Earth's surface, and Geosynchronous Orbit, at 36,000km, is defined as the orbital space surrounding the Earth. It is within this region, and especially in Low Earth…

Instrumentation and Methods for Astrophysics · Physics 2022-04-22 A. Lawrence , M. L. Rawls , M. Jah , A. Boley , F. Di Vruno , S. Garrington , M. Kramer , S. Lawler , J. Lowenthal , J. McDowell , M. McCaughrean

We have studied the conditions of through passage of asteroids with diameters 200, 100 and 50 m, consisting of three types of materials -- iron, stone and water ice across the Earth's atmosphere with the minimum trajectory altitude 10--15…

Earth and Planetary Astrophysics · Physics 2020-10-05 Daniil E. Khrennikov , Andrei K. Titov , Alexander E. Ershov , Vladimir I. Pariev , Sergei V. Karpov

The resource-consuming mining of blocks on a blockchain equipped with a proof of work consensus protocol bears the risk of ruin, namely when the operational costs for the mining exceed the received rewards. In this paper we investigate to…

Cryptography and Security · Computer Science 2021-09-08 Hansjoerg Albrecher , Dina Finger , Pierre-Olivier Goffard

A set of 50,000 artificial Earth impacting asteroids was used to obtain, for the first time, information about the dominance of individual impact effects such as wind blast, overpressure shock, thermal radiation, cratering, seismic shaking,…

Space Physics · Physics 2017-03-29 Clemens M. Rumpf , Hugh G. Lewis , Peter M. Atkinson

Asteroids can be eclipsed by other bodies in the Solar System, but no direct observation of an asteroid eclipse has been reported to date. We describe a statistical method to predict an eclipse for an asteroid based on the analysis of the…

Astrophysics · Physics 2007-05-23 P. Tricarico , N. C. Hearn , G. Lake , G. Worthey

[abridged] In the typical giant-impact scenario for the Moon formation most of the Moon's material originates from the impactor. Any Earth-impactor composition difference should, therefore, correspond to a comparable Earth-Moon composition…

Earth and Planetary Astrophysics · Physics 2017-06-21 Alessandra Mastrobuono-Battisti , Hagai B. Perets

Bitcoin mining presents a significant economic incentive for efficient hashing and broadcast of data, both parameters stemming from the Proofs of Work used to advance the network. This incentive has led to the development of Bitcoin…

Cryptography and Security · Computer Science 2016-03-17 Jonathan Harvey-Buschel , Can Kisagun

Impacts between differentiated planetesimals are ubiquitous in protoplanetary discs and may mix materials from the core, mantle, and crust of planetesimals, thus forming stony-iron meteorites. The surface composition of the asteroid (16)…

Earth and Planetary Astrophysics · Physics 2024-07-23 Kang Shuai , Christoph M. Schäfer , Christoph Burger , Hejiu Hui

Recent detection of exoplanets with Earth-like insolation attracts growing interest in how common Earth-like aqua planets are beyond the solar system. While terrestrial planets are often assumed to capture icy or water-rich planetesimals, a…

Earth and Planetary Astrophysics · Physics 2020-07-01 Tadahiro Kimura , Masahiro Ikoma

Since in periodic systems, a given element may be present in different spatial arrangements displaying vastly different physical and chemical properties, an elemental basis set that is independent of physical properties of materials may…

Chemical Physics · Physics 2021-05-04 Yanbing Zhou , Emanuel Gull , Dominika Zgid

As part of the national scientific network 'Pathways to Habitable Worlds' the delivery of water onto terrestrial planets is a key question since water is essential for the development of life as we know it. After summarizing the state of…

Earth and Planetary Astrophysics · Physics 2015-06-08 Rudolf Dvorak , Siegfried Eggl , Áron Süli , Zsolt Sándor , Mattia Galiazzo , Elke Pilat-Lohinger

The population of known minor bodies in retrograde orbits ($i > 90 ^{\circ}$) that are classified as asteroids is still growing. The aim of our study was to estimate the dynamical lifetimes of these bodies by use of the latest observational…

Earth and Planetary Astrophysics · Physics 2017-03-07 Paweł Kankiewicz , Ireneusz Włodarczyk

Asteroids are leftover pieces from the era of planet formation that help us understand conditions in the early Solar System. Unlike larger planetary bodies that were subject to global thermal modification during and subsequent to their…

Earth and Planetary Astrophysics · Physics 2009-06-25 Kevin J. Walsh , Patrick Michel , Derek C. Richardson

The formation, composition and physical properties of lunar dust are incompletely characterised with regard to human health. While the physical and chemical determinants of dust toxicity for materials such as asbestos, quartz, volcanic…

Instrumentation and Methods for Astrophysics · Physics 2015-06-05 Dag Linnarsson , James Carpenter , Bice Fubini , Per Gerde , Lars L. Karlsson , David J. Loftus , G. Kim Prisk , Urs Staufer , Erin M. Tranfield , Wim van Westrenen

Earth observation analytics have the potential to transform many sectors. However, due to limited ground connections, it currently takes hours to days to download and analyze Earth observation data, diminishing the value of data for…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-02-12 Zhouyu Li , Zhijin Yang , Huayue Gu , Xiaojian Wang , Yuchen Liu , Ruozhou Yu

There are thousands of asteroids in near-Earth space and millions expected in the Main Belt. They are diverse in their physical properties and compositions. They are also time capsules of the early Solar System making them valuable for…

Instrumentation and Methods for Astrophysics · Physics 2019-01-01 Jekan Thangavelautham , Erik Asphaug , Stephen Schwartz