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Central region of the Sun
The solar core is the hot, dense region at the center of the Sun where energy is generated by nuclear fusion. It is considered to extend from the Sun's
Solar_core
Star at the centre of the Solar System
the centre of the Solar System. It is a massive sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy
Sun
the Solar System's current structure. In roughly five billion years, the Sun's surface will cool as the fusion of hydrogen to helium stops in the core of
Formation and evolution of the Solar System
Formation_and_evolution_of_the_Solar_System
Extremely light particle produced by the Sun
A solar neutrino is a neutrino originating from nuclear fusion in the Sun's core, and is the most common type of neutrino passing through any source observed
Solar_neutrino
Topics referred to by the same term
Planetary core, the center of a planet Earth's inner core Earth's outer core Stellar core, the region of a star where nuclear fusion takes place Solar core Core
Core
Issue in astrophysics regarding discrepancy between the Sun's luminosity and neutrinos
The solar neutrino problem concerned a large discrepancy between the flux of solar neutrinos as predicted from the Sun's luminosity and as measured directly
Solar_neutrino_problem
Elementary particle with extremely low mass
fusion in the Sun pass through the dense matter in the solar core (where essentially all solar fusion takes place) on their way to detectors on Earth
Neutrino
Light emitted by the Sun
portion of the electromagnetic radiation which is emitted by the Sun (i.e. solar radiation) and received by the Earth, in particular the visible light perceptible
Sunlight
Long-term future of planet Earth
occurs in the core region of the star using the proton–proton chain reaction process. Because there is no convection in the solar core, the helium concentration
Future_of_Earth
Study of the structure and dynamics of the Sun through its oscillation
rigidly-rotating core and differentially-rotating envelope. The boundary layer is now known as the tachocline and is thought to be a key component for the solar dynamo
Helioseismology
Fluid layer between Earth's solid inner core and its mantle
early Solar System, so differences between CI meteorites and BSE can provide insights into the light element composition of Earth's outer core. For instance
Earth's_outer_core
2003 film by Jon Amiel
Earth to devastating solar radiation. The U.S. government devises a plan to detonate nuclear weapons within the Earth's outer core to restart the rotation
The_Core
Planetary system consisting of the Sun and objects orbiting it
bodies assembled. The Sun accounts for 99.86% of the Solar System's total mass. Inside the Sun's core, hydrogen is fused into helium, releasing energy that
Solar_System
Overview of and topical guide to the Solar System
Structure of the Sun Solar core Radiative zone Convection zone Photosphere Chromosphere Corona Solar granulation Sunspots Solar prominences Solar flares Physical
Outline_of_the_Solar_System
Region at the center of a star
helium core: a thin CNO cycle inner shell and an outer pp chain shell. Solar core Stellar evolution Pradhan & Nahar 2011, p. 624 Lodders & Fegley 2015,
Stellar_core
Innermost layer(s) of a planet
Earth. In the Solar System, core sizes range from about 20% (the Moon) to 85% of a planet's radius (Mercury). Gas giants also have cores, though the composition
Planetary_core
Reaction that combines atomic nuclei
exhausted in their cores, their cores (or a shell around the core) start fusing helium to carbon. In the most massive stars (at least 8–11 solar masses), the
Nuclear_fusion
Experiment in astroparticle physics, sited at CERN in Switzerland
solar axions would constitute a major discovery in particle physics, and would also open up a brand new window on the astrophysics of the solar core.
CERN_Axion_Solar_Telescope
Hypothetical non-planetary origins of life
cooler than its exterior. If this is so, there must be vegetation and the solar core is habitable." In order to discuss abiological life inside stars, Luis
Non-planetary_abiogenesis
alloys of its core, created by convection currents due to heat escaping from the core. The Earth and most of the planets in the Solar System, as well
Earth's_magnetic_field
Geomagnetic storm in 1859
geomagnetic storm in recorded history, peaking on 1–2 September 1859 during solar cycle 10. It created strong auroral displays that were reported globally
Carrington_Event
Innermost part of Earth, a solid ball of iron-nickel alloy
the composition of the inner core. However, based on the relative prevalence of various chemical elements in the Solar System, the theory of planetary
Earth's_inner_core
Standard unit of mass in astronomy
occurring within its core, leading to the emission of electromagnetic energy and neutrinos, and by the ejection of matter with the solar wind. It is expelling
Solar_mass
Overview of the scientific field of astronomy
Location Milky Way Solar System Stellar classification Stellar classification § Class G Internal structure Standard Solar Model Solar core Radiation zone
Outline_of_astronomy
Large self-illuminated object in space
active life due to the thermonuclear fusion of hydrogen into helium in its core. This process releases energy that traverses the star's interior and radiates
Star
Astronomical theory about the Solar System
explain the formation and evolution of the Solar System (as well as other planetary systems). It suggests the Solar System was formed from gas and dust orbiting
Nebular_hypothesis
Region of a star
monotonically with mass, with stars around 1.2 solar masses being almost entirely radiative. Above 1.2 solar masses, the core region becomes a convection zone and
Radiative_zone
Interior of the earth
generated by core flow is essential to protect life from interplanetary radiation and prevent the atmosphere from dissipating in the solar wind. The rate
Internal_structure_of_Earth
Measure of electrostatic effect and how far it persists
Debye length may reach macroscopic values, such as in the magnetosphere, solar wind, interstellar medium and intergalactic medium. See the table here below
Debye_length
Alternative to silicon-based photovoltaics
efficiencies and very low production costs, perovskite solar cells have become commercially attractive. Core problems and research subjects include their long-term
Perovskite_solar_cell
Astrophysical phenomenon
many solar masses of ejected 56 Ni. For even larger core masses, the core temperature becomes high enough to allow photodisintegration and the core collapses
Supernova
Open-source mesh networking protocol
MeshCore is a LoRa-based mesh networking protocol and software project created by Scott Powell in 2024. It is designed for low power off-the-grid text
MeshCore
Event wherein the Sun is obscured by the Moon
A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby obscuring the view of the Sun from a small part of Earth, totally or partially
Solar_eclipse
First planet from the Sun
Mercury is the first planet from the Sun and the smallest in the Solar System. It is a rocky planet with a trace atmosphere and a surface gravity slightly
Mercury_(planet)
Outermost layer of the Sun's atmosphere
structured by the solar magnetic field. The solar corona lies above the photosphere and chromosphere and extends out to the edge of the solar atmosphere where
Solar_corona
key to the understanding of the internal structure and dynamics of the solar core, as much as the p modes are key to that of the structure of the radiative
Phoebus_group
Ejecta from the Sun's corona
corona into the heliosphere. CMEs are often associated with solar flares and other forms of solar activity, but a broadly accepted theoretical understanding
Coronal_mass_ejection
Hypothetical early-universe star with a black hole core
III stars. A quasi-star would have resulted from the core of a protostar of at least 1,000 solar masses (2.0×1033 kg) collapsing into a black hole, where
Quasi-star
Largest moon of Jupiter
with an iron-rich, liquid metallic core, giving it the lowest moment of inertia factor of any solid body in the Solar System. Its internal ocean potentially
Ganymede_(moon)
Energy held by an object because of its position relative to other objects
This energy, now in the form of kinetic energy and gamma rays, keeps the solar core hot even as electromagnetic radiation carries electromagnetic energy into
Potential_energy
Periodic change in the Sun's activity
The Solar cycle, also known as the solar magnetic activity cycle, sunspot cycle, or Schwabe cycle, is a periodic 11-year change in the Sun's activity measured
Solar_cycle
Planet much larger than the Earth
depending on the size and composition of its core. Gas giants consist mostly of hydrogen and helium. The Solar System's gas giants, Jupiter and Saturn, have
Giant_planet
American solar power company
First Solar, Inc. is an American publicly traded manufacturer of solar panels. First Solar uses rigid thin-film modules for its solar panels, and produces
First_Solar
Neutrino physics experiment in Italy
analysis of the proton–proton fusion activity in the solar core, published in 2014, found that solar activity has been consistently stable on a 105-year
Borexino
Institute of Technology Experimental confirmation of neutrinos
contemporary experiment which detected neutrinos from nuclear fusion in the solar core. Observatories such as these detected neutrino bursts from supernova SN
Cowan–Reines neutrino experiment
Cowan–Reines_neutrino_experiment
Space propulsion method using Sun radiation
Solar sails (also known as lightsails, light sails, and photon sails) are a method of spacecraft propulsion using radiation pressure exerted by sunlight
Solar_sail
Theoretical framework detailing the sun's structure, composition and energetics
The standard solar model (SSM) is a mathematical model of the Sun as a spherical ball of gas (in varying states of ionisation, with the hydrogen in the
Standard_solar_model
Brief thermal runaway nuclear fusion in the core of low-mass stars
helium into carbon through the triple-alpha process in the core of low-mass stars (between 0.8 solar masses (M☉) and 2.0 M☉) during their red giant phase.
Helium_flash
Structure extending off of the Sun's surface
In solar physics, a prominence, sometimes referred to as a filament, is a large plasma and magnetic field structure extending outward from the Sun's surface
Solar_prominence
Continuous band of stars that appears on plots of stellar color versus brightness
Stars spend the majority of their lives on the main sequence, during which core hydrogen burning is dominant. These main-sequence stars, or sometimes interchangeably
Main_sequence
Comparison of a wide range of molar concentrations
Bahcall, John N.; Serenelli, Aldo M.; Basu, Sarbani (1 March 2005). "New Solar Opacities, Abundances, Helioseismology, and Neutrino Fluxes". The Astrophysical
Orders of magnitude (molar concentration)
Orders_of_magnitude_(molar_concentration)
Particle physics process affecting neutrinos
of oscillations in vacuum is valid. The size of the source (i.e. the solar core) is significantly larger than the oscillation length, therefore, averaging
Mikheyev–Smirnov–Wolfenstein effect
Mikheyev–Smirnov–Wolfenstein_effect
Sixth planet from the Sun
Saturn is the sixth planet from the Sun and the second largest in the Solar System, after Jupiter. It is a gas giant, with an average radius of about
Saturn
Third planet from the Sun
earthquakes. Earth has a liquid outer core that generates a magnetosphere capable of deflecting most of the destructive solar winds and cosmic radiation. Earth
Earth
Region of space dominated by the Sun
"inflated" by plasma originating from the Sun, known as the solar wind. Outside the heliosphere, this solar plasma gives way to the interstellar plasma permeating
Heliosphere
Rotation of Earth around its axis
400 SI seconds. Random fluctuations due to core-mantle coupling have an amplitude of about 5 ms. The mean solar second between 1750 and 1892 was chosen in
Earth's_rotation
Changes to stars over their lifespans
to ignite helium fusion before that point. In the helium cores of stars in the 0.6 to 2.0 solar mass range, which are largely supported by electron degeneracy
Stellar_evolution
Second planet from the Sun
interaction between the ionosphere and the solar wind,[page needed] rather than by an internal dynamo as in the Earth's core. Venus's small induced magnetosphere
Venus
Fifth planet from the Sun
contiguous structure in the Solar System, generated by eddy currents within the fluid, metallic hydrogen core. The solar wind interacts with the magnetosphere
Jupiter
Planet that is composed primarily of silicate rocks or metals
states. All terrestrial planets in the Solar System have the same basic structure, such as a central metallic core (mostly iron) with a surrounding silicate
Terrestrial_planet
Magnetic core on which the windings of electric transformers and inductors are formed
In electronics, a ferrite core is a type of magnetic core made of ferrite on which the windings of electric transformers and other wound components such
Ferrite_core
NASA probe of the Sun's outer corona
The Parker Solar Probe (PSP; previously Solar Probe, Solar Probe Plus or Solar Probe+) is a NASA space probe launched in 2018 to make observations of
Parker_Solar_Probe
Region between the orbits of Mars and Jupiter
The asteroid belt is a torus-shaped region in the Solar System, centered on the Sun and roughly spanning the space between the orbits of the planets Jupiter
Asteroid_belt
Regular period of greatest solar activity
Solar maximum is the regular period of greatest solar activity during the Sun's 11-year solar cycle. During solar maximum, large numbers of sunspots appear
Solar_maximum
Explosion of a star 8 to 45 times the mass of the Sun
violent explosion of a massive star following the rapid collapse of its core. A star's mass must be at least 8 times, but no more than 40 to 50 times
Type_II_supernova
Architectural engineering that uses the Sun's heat without electric or mechanical systems
In passive solar building design, windows, walls, and floors are made to collect, store, reflect, and distribute solar energy, in the form of heat in
Passive_solar_building_design
Method to produce electricity from solar radiation
and as photosensors. A photovoltaic system employs solar modules, each comprising a number of solar cells, which generate electrical power. PV installations
Photovoltaics
Type of high-energy supernova in very large stars
gap" in the range of a few solar masses.) In addition to the immediate energy release, a large fraction of the star's core is transformed to nickel-56
Pair-instability_supernova
Cylindrical sample drilled from an ice sheet
An ice core is a core sample that is typically removed from an ice sheet or a high mountain glacier. Since the ice forms from the incremental buildup of
Ice_core
Observing low-mass stellar particles
Jonathan H. (2016-11-15). "Projections for Measuring the Size of the Solar Core with Neutrino-Electron Scattering". Physical Review Letters. 117 (21)
Neutrino_astronomy
Esoteric new religious movement (1984–1997)
The Order of the Solar Temple (French: Ordre du Temple solaire, OTS), or simply the Solar Temple, was a new religious movement and secret society, often
Order_of_the_Solar_Temple
Planet outside of the Solar System
An exoplanet or extrasolar planet is a planet outside the Solar System. The first confirmed detection of an exoplanet was in 1992 around a pulsar, and
Exoplanet
Alternative Energy. Retrieved Nov 9, 2009. "SunCore solar cellphone - Products - Universal Solar Charger". suncoresolar.com. SunCore Corporation Website
SunCore_Corporation
being composed of a geochemically distinct crust, mantle, and planetary core. This structure is believed to have resulted from the fractional crystallization
Internal structure of the Moon
Internal_structure_of_the_Moon
Galaxy in the constellation Virgo
the core. The total mass of M87 may be 200 times that of the Milky Way. The galaxy experiences an infall of gas at the rate of two to three solar masses
Messier_87
Passive two-terminal electrical component that stores energy in its magnetic field
typically range from 1 μH (10−6 H) to 20 H. Many inductors have a magnetic core made of iron or ferrite inside the coil, which serves to increase the magnetic
Inductor
Architectural structures that transmit or distribute light
Light tubes (also known as solar pipes, tubular skylights or sun tunnels) are structures that transmit or distribute natural or artificial light for the
Light_tube
High-energy particles from the Sun
Solar energetic particles (SEP), formerly known as solar cosmic rays, are high-energy, charged particles originating in the solar atmosphere and solar
Solar_energetic_particles
American service Provider
Retrieved 22 September 2018. "Knight Transportation, Core Laboratories Set to Join S&P MidCap 400; SolarEdge Technologies to Join S&P SmallCap 600". Prnewswire
Core_Laboratories
other isotopes) spike in ice cores and corroborated by tree rings. It unexpectedly appears to have occurred near a solar minimum and was as strong as
List_of_solar_storms
Natural phenomena within the Sun's atmosphere
balance of the Solar System. The central mass became increasingly hot and dense, eventually initiating thermonuclear fusion in its core. The Sun is a G-type
Solar_phenomena
'design for eco-services', 'green scaffolding' 'green space walls', 'solar core' and 'piggyback roof, or 'playgardens').Digital sustainability can stimulate
Positive_Development
First module of the Soviet/Russian Mir space station
soft-docked with the Mir Core Module, but due to an issue could not achieve a hard-dock until April 11th. Kvant-1 delivered an additional solar array which was
Mir_Core_Module
1931 surrealist text by André Masson
(2000). Georges Bataille: Core cultural theorist. London: Sage Publications Ltd. pp. 67–68. ISBN 978-0-7619-6078-2. The Solar Anus at The Anarchist Library
The_Solar_Anus
solar roof with 160 Wp and in a box below the roof (not on the picture) 1943 Wp (!) solar panels for extension during driving breaks. The "PowerCore SunCruiser"
List of prototype solar-powered cars
List_of_prototype_solar-powered_cars
similar to that in the universe. Due to solar heating, the elements of Earth and the inner rocky planets of the Solar System have undergone an additional
Abundance of the chemical elements
Abundance_of_the_chemical_elements
into a solar-escape trajectory at 16.26 kilometers per second (58,536 km/h; 36,373 mph) from Cape Canaveral using an Atlas V and the Common Core Booster
List of artificial objects leaving the Solar System
List_of_artificial_objects_leaving_the_Solar_System
Geochronological radiometric dating method using radioactive decay of hafnium-182
dating has been applied to many samples from Solar System bodies and used to provide estimates for the date of core formation. For iron meteorites hafnium-tungsten
Hafnium–tungsten_dating
Ratio in stellar astrophysics
approximately 6 solar masses, the star leaves the main sequence with a core mass already greater than the Schönberg–Chandrasekhar limit so its core is never
Schönberg–Chandrasekhar_limit
Nuclear fusion reaction
theoretical models to dominate in stars with masses greater than about 1.3 solar masses. In general, proton–proton fusion can occur only if the kinetic energy
Proton–proton_chain
2021 video game
Machine's core team to scale up from 5 people to around 25 people as it required talent familiar with 3D game development. In order to create Solar Ash's
Solar_Ash
Scientific projections regarding the far future
all matter in the universe. All projections of the future of Earth, the Solar System and the universe must account for the second law of thermodynamics
Timeline_of_the_far_future
Dwarf planet in the asteroid belt
largest without a moon. It is also the only recognized dwarf planet in the solar system whose orbit lies within that of Neptune. In the minor planet numbering
Ceres_(dwarf_planet)
Solar power consists of photovoltaics (PV) and solar thermal energy in the European Union (EU). In 2010, the €2.6 billion European solar heating sectors
Solar power in the European Union
Solar_power_in_the_European_Union
Possible geologic event in Earth's early history
of Earth, where heavy metals such as iron and nickel congregated in the core during a geologically brief period. The original accretion of the Earth's
Iron_catastrophe
2024 video game
64-bit, multi-core computers to support tens of thousands of ships without noticeably impacting performance. The developers of Sins of a Solar Empire II first
Sins_of_a_Solar_Empire_II
Stellar classification
G. The spectral luminosity class is V. Such a star has about 0.9 to 1.1 solar masses and an effective temperature between about 5,300 and 6,000 K (5,000
G-type_main-sequence_star
Type of large cool star
giant is a luminous giant star of low or intermediate mass (roughly 0.3–8 solar masses (M☉)) in a late phase of stellar evolution. The outer atmosphere
Red_giant
Concept of collecting solar power in outer space and distributing it to Earth
Space-based solar power (SBSP or SSP) is the concept of collecting solar power in outer space with solar power satellites (SPS) and distributing it to
Space-based_solar_power
Soviet/Russian space station (1986–2001)
distance between the shuttle and Mir's solar arrays. To eliminate the need to move the module and retract solar arrays for clearance issues, a Mir Docking
Mir
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