Results 31 to 40 of about 158,325 (313)

Investigation of the Sudden Solar Ionospheric Disturbance using Radio Telescope [PDF]

open access: yesEPJ Web of Conferences, 2020
Low-frequency radio telescopes are cheap and useful devices for the investigation of terrestrial and extra-terrestrial emissions. These emissions come either from the Sun and the planet Jupiter to terrestrial emissions.
Aqasha Adam   +3 more
doaj   +1 more source

Are There Terrestrial Planets Lurking in the Outer Solar System?

open access: yesThe Astrophysical Journal Letters, 2023
Motivated by recent measurements of the free-floating-planet mass function at terrestrial masses, we consider the possibility that the solar system may have captured a terrestrial planet early in its history.
Amir Siraj
doaj   +1 more source

Microplastic Pollution in Terrestrial Ecosystems and Its Interaction with Other Soil Pollutants: A Potential Threat to Soil Ecosystem Sustainability

open access: yesResources, 2023
The production and disposal of plastics have become significant concerns for the sustainability of the planet. During the past 75 years, around 80% of plastic waste has either ended up in landfills or been released into the environment.
Meera Rai   +6 more
doaj   +1 more source

Dynamical Habitability of Known Extrasolar Planetary Systems [PDF]

open access: yesAstrophys.J. 583 (2003) 473-488, 2002
Habitability is usually defined as the requirement for a terrestrial planet's atmosphere to sustain liquid water. This definition can be complemented by the dynamical requirement that other planets in the system do not gravitationally perturb terrestrial planets outside of their habitable zone, the orbital region allowing the existence of liquid water.
arxiv   +1 more source

Formation of telluric planets and the origin of terrestrial water

open access: yesBIO Web of Conferences, 2014
Simulations of planet formation have failed to reproduce Mars’ small mass (compared with Earth) for 20 years. Here I will present a solution to the Mars problem that invokes large-scale migration of Jupiter and Saturn while they were still embedded in ...
Raymond Sean
doaj   +1 more source

Experimental evidence for hydrogen incorporation into Earth’s core

open access: yesNature Communications, 2021
Based on diamond-anvil cell experiments and cutting-edge secondary ion mass spectrometry analyses, the authors here show that hydrogen may be an important constituent in the Earth’s core and also in the metallic cores of any terrestrial planet or moon ...
Shoh Tagawa   +6 more
doaj   +1 more source

Einstein’s Problem

open access: yesJournal of World-Systems Research, 2023
This paper focuses upon the human migratory trajectory from eons on planet Earth to slowly moving out into orbital space and whether world-systems theory must craft new theoretical frames to grasp the possible problems arising from the existence of a ...
Albert J. Bergesen
doaj   +1 more source

The Fragility of the Terrestrial Planets During a Giant Planet Instability [PDF]

open access: yes, 2015
Many features of the outer solar system are replicated in numerical simulations if the giant planets undergo an orbital instability that ejects one or more ice giants. During this instability, Jupiter and Saturn's orbits diverge, crossing their 2:1 mean motion resonance (MMR), and this resonance-crossing can excite the terrestrial planet orbits.
arxiv   +1 more source

Evolution of Stars on The Establishment of The Solar System and Planetary System

open access: yesJurnal Ilmiah Pendidikan Fisika Al-Biruni, 2016
This research is the literature studies that provide an introduction to the theory of the formation and early evolution of solar system and planetary systems.
Khilyatul Khoiriyah
doaj   +1 more source

Early Water Delivery to Terrestrial Planet Regions during the Stages of Jupiter’s Formation and Migration in the Grand Tack Model

open access: yesThe Planetary Science Journal, 2023
The formation and subsequent migration of gas giants could significantly affect the material mixing in the solar system. In this study, we use N -body simulations to investigate how much water is transported into the region of the terrestrial planet ...
Masahiro Ogihara   +2 more
doaj   +1 more source

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