141 relations: Absolute magnitude, Accelerating expansion of the universe, Acta Physica Polonica, Ad hoc hypothesis, Adam Riess, Alan Guth, Albert Einstein, Alexei Starobinsky, Anisotropy, Anthropic principle, Apparent magnitude, Ars Technica, ArXiv, Astronomy, Astronomy & Astrophysics, Australian Astronomical Observatory, Baryon, Baryon acoustic oscillations, Big Bang, Big Crunch, Big Rip, BOOMERanG experiment, Brian Greene, Brian Schmidt, Casimir effect, Cold dark matter, Compton wavelength, Conformal gravity, Cosmic Background Explorer, Cosmic distance ladder, Cosmic microwave background, Cosmological constant, Coulomb's law, Cyclic model, Dark Energy Spectroscopic Instrument, Dark Energy Survey, Dark fluid, Dark matter, David Merritt, De Sitter invariant special relativity, Deceleration parameter, Density, Dynamic equilibrium, Edwin Hubble, Einstein field equations, Energy, Energy density, Equation of state, Equation of state (cosmology), Equivalence principle, ..., Ethan Siegel, Event horizon, Expansion of the universe, Falsifiability, Field equation, Fine-tuning, Flatness problem, Friedmann–Lemaître–Robertson–Walker metric, Fritz Zwicky, Fundamental interaction, Future of an expanding universe, Galaxy, Galaxy groups and clusters, General relativity, Gravitational lens, Gravity, Gravity well, GW170817, Heat death of the universe, High-Z Supernova Search Team, Hubble bubble (astronomy), Hubble's law, Hypothesis, Illustris project, Inertial frame of reference, Inflation (cosmology), Karl Popper, Kinetic energy, Lambda-CDM model, Length scale, List of Nobel laureates in Physics, List of unsolved problems in physics, Local Group, Luminosity, Matter, Metamaterial, Michael Turner (cosmologist), Milky Way, Millimeter Anisotropy eXperiment IMaging Array, Moduli (physics), Negative mass, Neutrino, Nuclear force, Observable universe, Observational error, Occam's razor, Order of magnitude, Orders of magnitude (numbers), Phantom energy, Philosophical Transactions of the Royal Society A, Philosophy of science, Photon, Phys.org, Physical cosmology, Planck (spacecraft), Quantum field theory, Quantum fluctuation, Quasar, Quintessence (physics), Quintessence: The Search for Missing Mass in the Universe, Quintom scenario, Radial velocity, Radiation pressure, Redshift, Renormalization, Sachs–Wolfe effect, Saul Perlmutter, Scalar field, Scalar field theory, Scholarpedia, Science (journal), Shape of the universe, Special relativity, Standard Model, Star, Stress–energy tensor, String theory, Supernova, Supernova Cosmology Project, Supernova Legacy Survey, Supersymmetry, The Astrophysical Journal, The New York Times, Type Ia supernova, Vacuum, Vacuum energy, Vacuum state, Void (astronomy), Wilkinson Microwave Anisotropy Probe, Zero-point energy, 2dF Galaxy Redshift Survey. Expand index (91 more) »
Absolute magnitude
Absolute magnitude is a measure of the luminosity of a celestial object, on a logarithmic astronomical magnitude scale.
New!!: Dark energy and Absolute magnitude · See more »
Accelerating expansion of the universe
The accelerating expansion of the universe is the observation that the universe appears to be expanding at an increasing rate, so that the velocity at which a distant galaxy is receding from the observer is continuously increasing with time.
New!!: Dark energy and Accelerating expansion of the universe · See more »
Acta Physica Polonica
Acta Physica Polonica is an open access peer-reviewed scientific journal covering research in physics.
New!!: Dark energy and Acta Physica Polonica · See more »
Ad hoc hypothesis
In science and philosophy, an ad hoc hypothesis is a hypothesis added to a theory in order to save it from being falsified.
New!!: Dark energy and Ad hoc hypothesis · See more »
Adam Riess
Adam Guy Riess (born December 16, 1969) is an American astrophysicist and Bloomberg Distinguished Professor at Johns Hopkins University and the Space Telescope Science Institute and is known for his research in using supernovae as cosmological probes.
New!!: Dark energy and Adam Riess · See more »
Alan Guth
Alan Harvey Guth (born February 27, 1947) is an American theoretical physicist and cosmologist.
New!!: Dark energy and Alan Guth · See more »
Albert Einstein
Albert Einstein (14 March 1879 – 18 April 1955) was a German-born theoretical physicist who developed the theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics).
New!!: Dark energy and Albert Einstein · See more »
Alexei Starobinsky
Alexei Alexandrovich Starobinsky (Алексе́й Алекса́ндрович Староби́нский; born 19 April 1948) is a Soviet and Russian astrophysicist and cosmologist.
New!!: Dark energy and Alexei Starobinsky · See more »
Anisotropy
Anisotropy, is the property of being directionally dependent, which implies different properties in different directions, as opposed to isotropy.
New!!: Dark energy and Anisotropy · See more »
Anthropic principle
The anthropic principle is a philosophical consideration that observations of the universe must be compatible with the conscious and sapient life that observes it.
New!!: Dark energy and Anthropic principle · See more »
Apparent magnitude
The apparent magnitude of a celestial object is a number that is a measure of its brightness as seen by an observer on Earth.
New!!: Dark energy and Apparent magnitude · See more »
Ars Technica
Ars Technica (a Latin-derived term that the site translates as the "art of technology") is a website covering news and opinions in technology, science, politics, and society, created by Ken Fisher and Jon Stokes in 1998.
New!!: Dark energy and Ars Technica · See more »
ArXiv
arXiv (pronounced "archive") is a repository of electronic preprints (known as e-prints) approved for publication after moderation, that consists of scientific papers in the fields of mathematics, physics, astronomy, computer science, quantitative biology, statistics, and quantitative finance, which can be accessed online.
New!!: Dark energy and ArXiv · See more »
Astronomy
Astronomy (from ἀστρονομία) is a natural science that studies celestial objects and phenomena.
New!!: Dark energy and Astronomy · See more »
Astronomy & Astrophysics
Astronomy & Astrophysics is a peer-reviewed scientific journal covering theoretical, observational, and instrumental astronomy and astrophysics.
New!!: Dark energy and Astronomy & Astrophysics · See more »
Australian Astronomical Observatory
The Australian Astronomical Observatory (AAO), formerly the Anglo-Australian Observatory, is an optical and near-infrared astronomy observatory with its headquarters in North Ryde in suburban Sydney, Australia.
New!!: Dark energy and Australian Astronomical Observatory · See more »
Baryon
A baryon is a composite subatomic particle made up of three quarks (a triquark, as distinct from mesons, which are composed of one quark and one antiquark).
New!!: Dark energy and Baryon · See more »
Baryon acoustic oscillations
In cosmology, baryon acoustic oscillations (BAO) are regular, periodic fluctuations in the density of the visible baryonic matter (normal matter) of the universe.
New!!: Dark energy and Baryon acoustic oscillations · See more »
Big Bang
The Big Bang theory is the prevailing cosmological model for the universe from the earliest known periods through its subsequent large-scale evolution.
New!!: Dark energy and Big Bang · See more »
Big Crunch
The Big Crunch is one possible scenario for the ultimate fate of the universe, in which the metric expansion of space eventually reverses and the universe recollapses, ultimately causing the cosmic scale factor to reach zero or causing a reformation of the universe starting with another Big Bang.
New!!: Dark energy and Big Crunch · See more »
Big Rip
In physical cosmology, the Big Rip is a hypothetical cosmological model concerning the ultimate fate of the universe, in which the matter of the universe, from stars and galaxies to atoms and subatomic particles, and even spacetime itself, is progressively torn apart by the expansion of the universe at a certain time in the future.
New!!: Dark energy and Big Rip · See more »
BOOMERanG experiment
In astronomy and observational cosmology, The BOOMERanG experiment (Balloon Observations Of Millimetric Extragalactic Radiation ANd Geophysics) was an experiment which measured the cosmic microwave background radiation of a part of the sky during three sub-orbital (high-altitude) balloon flights.
New!!: Dark energy and BOOMERanG experiment · See more »
Brian Greene
Brian Randolph Greene (born February 9, 1963) is an American theoretical physicist, mathematician, and string theorist.
New!!: Dark energy and Brian Greene · See more »
Brian Schmidt
Brian Paul Schmidt (born on 24 February 1967 in Missoula, Montana) is the Vice-Chancellor of the Australian National University (ANU).
New!!: Dark energy and Brian Schmidt · See more »
Casimir effect
In quantum field theory, the Casimir effect and the Casimir–Polder force are physical forces arising from a quantized field.
New!!: Dark energy and Casimir effect · See more »
Cold dark matter
In cosmology and physics, cold dark matter (CDM) is a hypothetical form of dark matter whose particles moved slowly compared to the speed of light (the cold in CDM) since the universe was approximately one year old (a time when the cosmic particle horizon contained the mass of one typical galaxy); and interact very weakly with ordinary matter and electromagnetic radiation (the dark in CDM).
New!!: Dark energy and Cold dark matter · See more »
Compton wavelength
The Compton wavelength is a quantum mechanical property of a particle.
New!!: Dark energy and Compton wavelength · See more »
Conformal gravity
Conformal gravity are gravity theories that are invariant under conformal transformations in the Riemannian geometry sense; more accurately, they are invariant under Weyl transformations g_\rightarrow\Omega^2(x)g_ where g_ is the metric tensor and \Omega(x) is a function on spacetime.
New!!: Dark energy and Conformal gravity · See more »
Cosmic Background Explorer
The Cosmic Background Explorer (COBE), also referred to as Explorer 66, was a satellite dedicated to cosmology, which operated from 1989 to 1993.
New!!: Dark energy and Cosmic Background Explorer · See more »
Cosmic distance ladder
The cosmic distance ladder (also known as the extragalactic distance scale) is the succession of methods by which astronomers determine the distances to celestial objects.
New!!: Dark energy and Cosmic distance ladder · See more »
Cosmic microwave background
The cosmic microwave background (CMB, CMBR) is electromagnetic radiation as a remnant from an early stage of the universe in Big Bang cosmology.
New!!: Dark energy and Cosmic microwave background · See more »
Cosmological constant
In cosmology, the cosmological constant (usually denoted by the Greek capital letter lambda: Λ) is the value of the energy density of the vacuum of space.
New!!: Dark energy and Cosmological constant · See more »
Coulomb's law
Coulomb's law, or Coulomb's inverse-square law, is a law of physics for quantifying the amount of force with which stationary electrically charged particles repel or attract each other.
New!!: Dark energy and Coulomb's law · See more »
Cyclic model
A cyclic model (or oscillating model) is any of several cosmological models in which the universe follows infinite, or indefinite, self-sustaining cycles.
New!!: Dark energy and Cyclic model · See more »
Dark Energy Spectroscopic Instrument
The Mid-Scale Dark Energy Spectroscopic Instrument (DESI) is a new instrument for conducting a spectrographic survey of distant galaxies.
New!!: Dark energy and Dark Energy Spectroscopic Instrument · See more »
Dark Energy Survey
The Dark Energy Survey (DES) is a visible and near-infrared survey that aims to probe the dynamics of the expansion of the Universe and the growth of large-scale structure.
New!!: Dark energy and Dark Energy Survey · See more »
Dark fluid
In astronomy and cosmology, dark fluid is an alternative theory to both dark matter and dark energy and attempts to explain both phenomena in a single framework.
New!!: Dark energy and Dark fluid · See more »
Dark matter
Dark matter is a theorized form of matter that is thought to account for approximately 80% of the matter in the universe, and about a quarter of its total energy density.
New!!: Dark energy and Dark matter · See more »
David Merritt
David Merritt is an American astrophysicist and professor at the Rochester Institute of Technology in Rochester, New York.
New!!: Dark energy and David Merritt · See more »
De Sitter invariant special relativity
In mathematical physics, de Sitter invariant special relativity is the speculative idea that the fundamental symmetry group of spacetime is the indefinite orthogonal group SO(4,1), that of de Sitter space.
New!!: Dark energy and De Sitter invariant special relativity · See more »
Deceleration parameter
The deceleration parameter q in cosmology is a dimensionless measure of the cosmic acceleration of the expansion of space in a Friedmann–Lemaître–Robertson–Walker universe.
New!!: Dark energy and Deceleration parameter · See more »
Density
The density, or more precisely, the volumetric mass density, of a substance is its mass per unit volume.
New!!: Dark energy and Density · See more »
Dynamic equilibrium
In chemistry, a dynamic equilibrium exists once a reversible reaction ceases to change its ratio of reactants/products, but substances move between the chemicals at an equal rate, meaning there is no net change.
New!!: Dark energy and Dynamic equilibrium · See more »
Edwin Hubble
Edwin Powell Hubble (November 20, 1889 – September 28, 1953) was an American astronomer.
New!!: Dark energy and Edwin Hubble · See more »
Einstein field equations
The Einstein field equations (EFE; also known as Einstein's equations) comprise the set of 10 equations in Albert Einstein's general theory of relativity that describe the fundamental interaction of gravitation as a result of spacetime being curved by mass and energy.
New!!: Dark energy and Einstein field equations · See more »
Energy
In physics, energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object.
New!!: Dark energy and Energy · See more »
Energy density
Energy density is the amount of energy stored in a given system or region of space per unit volume.
New!!: Dark energy and Energy density · See more »
Equation of state
In physics and thermodynamics, an equation of state is a thermodynamic equation relating state variables which describe the state of matter under a given set of physical conditions, such as pressure, volume, temperature (PVT), or internal energy.
New!!: Dark energy and Equation of state · See more »
Equation of state (cosmology)
In cosmology, the equation of state of a perfect fluid is characterized by a dimensionless number w, equal to the ratio of its pressure p to its energy density \rho: It is closely related to the thermodynamic equation of state and ideal gas law.
New!!: Dark energy and Equation of state (cosmology) · See more »
Equivalence principle
In the theory of general relativity, the equivalence principle is any of several related concepts dealing with the equivalence of gravitational and inertial mass, and to Albert Einstein's observation that the gravitational "force" as experienced locally while standing on a massive body (such as the Earth) is the same as the pseudo-force experienced by an observer in a non-inertial (accelerated) frame of reference.
New!!: Dark energy and Equivalence principle · See more »
Ethan Siegel
Ethan R. Siegel (August 3, 1978, Bronx) is an American theoretical astrophysicist and science writer, who studies Big Bang theory.
New!!: Dark energy and Ethan Siegel · See more »
Event horizon
In general relativity, an event horizon is a region in spacetime beyond which events cannot affect an outside observer.
New!!: Dark energy and Event horizon · See more »
Expansion of the universe
The expansion of the universe is the increase of the distance between two distant parts of the universe with time.
New!!: Dark energy and Expansion of the universe · See more »
Falsifiability
A statement, hypothesis, or theory has falsifiability (or is falsifiable) if it can logically be proven false by contradicting it with a basic statement.
New!!: Dark energy and Falsifiability · See more »
Field equation
In theoretical physics and applied mathematics, a field equation is a partial differential equation which determines the dynamics of a physical field, specifically the time evolution and spatial distribution of the field.
New!!: Dark energy and Field equation · See more »
Fine-tuning
In theoretical physics, fine-tuning is the process in which parameters of a model must be adjusted very precisely in order to fit with certain observations.
New!!: Dark energy and Fine-tuning · See more »
Flatness problem
The flatness problem (also known as the oldness problem) is a cosmological fine-tuning problem within the Big Bang model of the universe.
New!!: Dark energy and Flatness problem · See more »
Friedmann–Lemaître–Robertson–Walker metric
The Friedmann–Lemaître–Robertson–Walker (FLRW) metric is an exact solution of Einstein's field equations of general relativity; it describes a homogeneous, isotropic, expanding or contracting universe that is path connected, but not necessarily simply connected.
New!!: Dark energy and Friedmann–Lemaître–Robertson–Walker metric · See more »
Fritz Zwicky
Fritz Zwicky (February 14, 1898 – February 8, 1974) was a Swiss astronomer.
New!!: Dark energy and Fritz Zwicky · See more »
Fundamental interaction
In physics, the fundamental interactions, also known as fundamental forces, are the interactions that do not appear to be reducible to more basic interactions.
New!!: Dark energy and Fundamental interaction · See more »
Future of an expanding universe
Observations suggest that the expansion of the universe will continue forever.
New!!: Dark energy and Future of an expanding universe · See more »
Galaxy
A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter.
New!!: Dark energy and Galaxy · See more »
Galaxy groups and clusters
Galaxy groups and clusters are the largest known gravitationally bound objects to have arisen thus far in the process of cosmic structure formation.
New!!: Dark energy and Galaxy groups and clusters · See more »
General relativity
General relativity (GR, also known as the general theory of relativity or GTR) is the geometric theory of gravitation published by Albert Einstein in 1915 and the current description of gravitation in modern physics.
New!!: Dark energy and General relativity · See more »
Gravitational lens
A gravitational lens is a distribution of matter (such as a cluster of galaxies) between a distant light source and an observer, that is capable of bending the light from the source as the light travels towards the observer.
New!!: Dark energy and Gravitational lens · See more »
Gravity
Gravity, or gravitation, is a natural phenomenon by which all things with mass or energy—including planets, stars, galaxies, and even light—are brought toward (or gravitate toward) one another.
New!!: Dark energy and Gravity · See more »
Gravity well
A gravity well or gravitational well is a conceptual model of the gravitational field surrounding a body in space – the more massive the body, the deeper and more extensive the gravity well associated with it.
New!!: Dark energy and Gravity well · See more »
GW170817
GW170817 was a gravitational wave (GW) signal observed by the LIGO and Virgo detectors on 17 August 2017.
New!!: Dark energy and GW170817 · See more »
Heat death of the universe
The heat death of the universe is a plausible ultimate fate of the universe in which the universe has diminished to a state of no thermodynamic free energy and therefore can no longer sustain processes that increase entropy.
New!!: Dark energy and Heat death of the universe · See more »
High-Z Supernova Search Team
The High-Z Supernova Search Team was an international cosmology collaboration which used Type Ia supernovae to chart the expansion of the universe.
New!!: Dark energy and High-Z Supernova Search Team · See more »
Hubble bubble (astronomy)
In astronomy, a Hubble bubble would be "a departure of the local value of the Hubble constant from its globally averaged value," or, more technically, "a local monopole in the peculiar velocity field, perhaps caused by a local void in the mass density." The Hubble constant, named for astronomer Edwin Hubble, whose work made clear the expansion of the universe, measures the rate at which expansion occurs.
New!!: Dark energy and Hubble bubble (astronomy) · See more »
Hubble's law
Hubble's law is the name for the observation in physical cosmology that.
New!!: Dark energy and Hubble's law · See more »
Hypothesis
A hypothesis (plural hypotheses) is a proposed explanation for a phenomenon.
New!!: Dark energy and Hypothesis · See more »
Illustris project
The Illustris project is an ongoing series of astrophysical simulations run by an international collaboration of scientists.
New!!: Dark energy and Illustris project · See more »
Inertial frame of reference
An inertial frame of reference in classical physics and special relativity is a frame of reference in which a body with zero net force acting upon it is not accelerating; that is, such a body is at rest or it is moving at a constant speed in a straight line.
New!!: Dark energy and Inertial frame of reference · See more »
Inflation (cosmology)
In physical cosmology, cosmic inflation, cosmological inflation, or just inflation, is a theory of exponential expansion of space in the early universe.
New!!: Dark energy and Inflation (cosmology) · See more »
Karl Popper
Sir Karl Raimund Popper (28 July 1902 – 17 September 1994) was an Austrian-British philosopher and professor.
New!!: Dark energy and Karl Popper · See more »
Kinetic energy
In physics, the kinetic energy of an object is the energy that it possesses due to its motion.
New!!: Dark energy and Kinetic energy · See more »
Lambda-CDM model
The ΛCDM (Lambda cold dark matter) or Lambda-CDM model is a parametrization of the Big Bang cosmological model in which the universe contains a cosmological constant, denoted by Lambda (Greek Λ), associated with dark energy, and cold dark matter (abbreviated CDM).
New!!: Dark energy and Lambda-CDM model · See more »
Length scale
In physics, length scale is a particular length or distance determined with the precision of one order of magnitude.
New!!: Dark energy and Length scale · See more »
List of Nobel laureates in Physics
The Nobel Prize in Physics (Nobelpriset i fysik) is awarded annually by the Royal Swedish Academy of Sciences to scientists in the various fields of physics.
New!!: Dark energy and List of Nobel laureates in Physics · See more »
List of unsolved problems in physics
Some of the major unsolved problems in physics are theoretical, meaning that existing theories seem incapable of explaining a certain observed phenomenon or experimental result.
New!!: Dark energy and List of unsolved problems in physics · See more »
Local Group
The Local Group is the galaxy group that includes the Milky Way.
New!!: Dark energy and Local Group · See more »
Luminosity
In astronomy, luminosity is the total amount of energy emitted per unit of time by a star, galaxy, or other astronomical object.
New!!: Dark energy and Luminosity · See more »
Matter
In the classical physics observed in everyday life, matter is any substance that has mass and takes up space by having volume.
New!!: Dark energy and Matter · See more »
Metamaterial
A metamaterial (from the Greek word μετά meta, meaning "beyond") is a material engineered to have a property that is not found in nature.
New!!: Dark energy and Metamaterial · See more »
Michael Turner (cosmologist)
Michael S. Turner is a theoretical cosmologist, who coined the term dark energy in 1998.
New!!: Dark energy and Michael Turner (cosmologist) · See more »
Milky Way
The Milky Way is the galaxy that contains our Solar System.
New!!: Dark energy and Milky Way · See more »
Millimeter Anisotropy eXperiment IMaging Array
The Millimeter Anisotropy eXperiment IMaging Array (MAXIMA) experiment was a balloon-borne experiment funded by the U.S. NSF, NASA and Department of Energy, and operated by an international collaboration headed by the University of California, to measure the fluctuations of the cosmic microwave background.
New!!: Dark energy and Millimeter Anisotropy eXperiment IMaging Array · See more »
Moduli (physics)
In quantum field theory, the term moduli (or more properly moduli fields) is sometimes used to refer to scalar fields whose potential energy function has continuous families of global minima.
New!!: Dark energy and Moduli (physics) · See more »
Negative mass
In theoretical physics, negative mass is matter whose mass is of opposite sign to the mass of normal matter, e.g. −1 kg.
New!!: Dark energy and Negative mass · See more »
Neutrino
A neutrino (denoted by the Greek letter ν) is a fermion (an elementary particle with half-integer spin) that interacts only via the weak subatomic force and gravity.
New!!: Dark energy and Neutrino · See more »
Nuclear force
The nuclear force (or nucleon–nucleon interaction or residual strong force) is a force that acts between the protons and neutrons of atoms.
New!!: Dark energy and Nuclear force · See more »
Observable universe
The observable universe is a spherical region of the Universe comprising all matter that can be observed from Earth at the present time, because electromagnetic radiation from these objects has had time to reach Earth since the beginning of the cosmological expansion.
New!!: Dark energy and Observable universe · See more »
Observational error
Observational error (or measurement error) is the difference between a measured value of a quantity and its true value.
New!!: Dark energy and Observational error · See more »
Occam's razor
Occam's razor (also Ockham's razor or Ocham's razor; Latin: lex parsimoniae "law of parsimony") is the problem-solving principle that, the simplest explanation tends to be the right one.
New!!: Dark energy and Occam's razor · See more »
Order of magnitude
An order of magnitude is an approximate measure of the number of digits that a number has in the commonly-used base-ten number system.
New!!: Dark energy and Order of magnitude · See more »
Orders of magnitude (numbers)
This list contains selected positive numbers in increasing order, including counts of things, dimensionless quantity and probabilities.
New!!: Dark energy and Orders of magnitude (numbers) · See more »
Phantom energy
Phantom energy is a hypothetical form of dark energy satisfying the equation of state with w. It possesses negative kinetic energy, and predicts expansion of the universe in excess of that predicted by a cosmological constant, which leads to a Big Rip.
New!!: Dark energy and Phantom energy · See more »
Philosophical Transactions of the Royal Society A
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences is a fortnightly peer-reviewed scientific journal published by the Royal Society.
New!!: Dark energy and Philosophical Transactions of the Royal Society A · See more »
Philosophy of science
Philosophy of science is a sub-field of philosophy concerned with the foundations, methods, and implications of science.
New!!: Dark energy and Philosophy of science · See more »
Photon
The photon is a type of elementary particle, the quantum of the electromagnetic field including electromagnetic radiation such as light, and the force carrier for the electromagnetic force (even when static via virtual particles).
New!!: Dark energy and Photon · See more »
Phys.org
Phys.org is a science, research and technology news aggregator where much of the content is republished directly from press releases and news agencies-in a practice known as churnalism.
New!!: Dark energy and Phys.org · See more »
Physical cosmology
Physical cosmology is the study of the largest-scale structures and dynamics of the Universe and is concerned with fundamental questions about its origin, structure, evolution, and ultimate fate.
New!!: Dark energy and Physical cosmology · See more »
Planck (spacecraft)
Planck was a space observatory operated by the European Space Agency (ESA) from 2009 to 2013, which mapped the anisotropies of the cosmic microwave background (CMB) at microwave and infra-red frequencies, with high sensitivity and small angular resolution.
New!!: Dark energy and Planck (spacecraft) · See more »
Quantum field theory
In theoretical physics, quantum field theory (QFT) is the theoretical framework for constructing quantum mechanical models of subatomic particles in particle physics and quasiparticles in condensed matter physics.
New!!: Dark energy and Quantum field theory · See more »
Quantum fluctuation
In quantum physics, a quantum fluctuation (or vacuum state fluctuation or vacuum fluctuation) is the temporary change in the amount of energy in a point in space, as explained in Werner Heisenberg's uncertainty principle.
New!!: Dark energy and Quantum fluctuation · See more »
Quasar
A quasar (also known as a QSO or quasi-stellar object) is an extremely luminous active galactic nucleus (AGN).
New!!: Dark energy and Quasar · See more »
Quintessence (physics)
In physics, quintessence is a hypothetical form of dark energy, more precisely a scalar field, postulated as an explanation of the observation of an accelerating rate of expansion of the universe.
New!!: Dark energy and Quintessence (physics) · See more »
Quintessence: The Search for Missing Mass in the Universe
Quintessence: The Search for Missing Mass in the Universe is the fifth non-fiction book by the American theoretical physicist Lawrence M. Krauss.
New!!: Dark energy and Quintessence: The Search for Missing Mass in the Universe · See more »
Quintom scenario
The Quintom scenario (derived from the words quintessence and phantom, as in phantom energy) is a hypothetical scenario involving dark energy.
New!!: Dark energy and Quintom scenario · See more »
Radial velocity
The radial velocity of an object with respect to a given point is the rate of change of the distance between the object and the point.
New!!: Dark energy and Radial velocity · See more »
Radiation pressure
Radiation pressure is the pressure exerted upon any surface due to the exchange of momentum between the object and the electromagnetic field.
New!!: Dark energy and Radiation pressure · See more »
Redshift
In physics, redshift happens when light or other electromagnetic radiation from an object is increased in wavelength, or shifted to the red end of the spectrum.
New!!: Dark energy and Redshift · See more »
Renormalization
Renormalization is a collection of techniques in quantum field theory, the statistical mechanics of fields, and the theory of self-similar geometric structures, that are used to treat infinities arising in calculated quantities by altering values of quantities to compensate for effects of their self-interactions.
New!!: Dark energy and Renormalization · See more »
Sachs–Wolfe effect
The Sachs–Wolfe effect, named after Rainer K. Sachs and Arthur M. Wolfe, is a property of the cosmic microwave background radiation (CMB), in which photons from the CMB are gravitationally redshifted, causing the CMB spectrum to appear uneven.
New!!: Dark energy and Sachs–Wolfe effect · See more »
Saul Perlmutter
Saul Perlmutter (born September 22, 1959) is a U.S. astrophysicist at the Lawrence Berkeley National Laboratory and a professor of physics at the University of California, Berkeley.
New!!: Dark energy and Saul Perlmutter · See more »
Scalar field
In mathematics and physics, a scalar field associates a scalar value to every point in a space – possibly physical space.
New!!: Dark energy and Scalar field · See more »
Scalar field theory
In theoretical physics, scalar field theory can refer to a relativistically invariant classical or quantum theory of scalar fields.
New!!: Dark energy and Scalar field theory · See more »
Scholarpedia
Scholarpedia is an English-language online wiki-based encyclopedia with features commonly associated with open-access online academic journals, which aims to have quality content.
New!!: Dark energy and Scholarpedia · See more »
Science (journal)
Science, also widely referred to as Science Magazine, is the peer-reviewed academic journal of the American Association for the Advancement of Science (AAAS) and one of the world's top academic journals.
New!!: Dark energy and Science (journal) · See more »
Shape of the universe
The shape of the universe is the local and global geometry of the universe.
New!!: Dark energy and Shape of the universe · See more »
Special relativity
In physics, special relativity (SR, also known as the special theory of relativity or STR) is the generally accepted and experimentally well-confirmed physical theory regarding the relationship between space and time.
New!!: Dark energy and Special relativity · See more »
Standard Model
The Standard Model of particle physics is the theory describing three of the four known fundamental forces (the electromagnetic, weak, and strong interactions, and not including the gravitational force) in the universe, as well as classifying all known elementary particles.
New!!: Dark energy and Standard Model · See more »
Star
A star is type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.
New!!: Dark energy and Star · See more »
Stress–energy tensor
The stress–energy tensor (sometimes stress–energy–momentum tensor or energy–momentum tensor) is a tensor quantity in physics that describes the density and flux of energy and momentum in spacetime, generalizing the stress tensor of Newtonian physics.
New!!: Dark energy and Stress–energy tensor · See more »
String theory
In physics, string theory is a theoretical framework in which the point-like particles of particle physics are replaced by one-dimensional objects called strings.
New!!: Dark energy and String theory · See more »
Supernova
A supernova (plural: supernovae or supernovas, abbreviations: SN and SNe) is a transient astronomical event that occurs during the last stellar evolutionary stages of a star's life, either a massive star or a white dwarf, whose destruction is marked by one final, titanic explosion.
New!!: Dark energy and Supernova · See more »
Supernova Cosmology Project
The Supernova Cosmology Project is one of two research teams that determined the likelihood of an accelerating universe and therefore a positive cosmological constant, using data from the redshift of Type Ia supernovae.
New!!: Dark energy and Supernova Cosmology Project · See more »
Supernova Legacy Survey
The Supernova Legacy Survey Program is a project designed to investigate dark energy, by detecting and monitoring approximately 2000 high-redshift supernovae between 2003 and 2008, using MegaPrime, a large CCD mosaic at the Canada-France-Hawaii Telescope.
New!!: Dark energy and Supernova Legacy Survey · See more »
Supersymmetry
In particle physics, supersymmetry (SUSY) is a theory that proposes a relationship between two basic classes of elementary particles: bosons, which have an integer-valued spin, and fermions, which have a half-integer spin.
New!!: Dark energy and Supersymmetry · See more »
The Astrophysical Journal
The Astrophysical Journal, often abbreviated ApJ (pronounced "ap jay") in references and speech, is a peer-reviewed scientific journal of astrophysics and astronomy, established in 1895 by American astronomers George Ellery Hale and James Edward Keeler.
New!!: Dark energy and The Astrophysical Journal · See more »
The New York Times
The New York Times (sometimes abbreviated as The NYT or The Times) is an American newspaper based in New York City with worldwide influence and readership.
New!!: Dark energy and The New York Times · See more »
Type Ia supernova
A type Ia supernova (read "type one-a") is a type of supernova that occurs in binary systems (two stars orbiting one another) in which one of the stars is a white dwarf.
New!!: Dark energy and Type Ia supernova · See more »
Vacuum
Vacuum is space devoid of matter.
New!!: Dark energy and Vacuum · See more »
Vacuum energy
Vacuum energy is an underlying background energy that exists in space throughout the entire Universe.
New!!: Dark energy and Vacuum energy · See more »
Vacuum state
In quantum field theory, the quantum vacuum state (also called the quantum vacuum or vacuum state) is the quantum state with the lowest possible energy.
New!!: Dark energy and Vacuum state · See more »
Void (astronomy)
Cosmic voids are vast spaces between filaments (the largest-scale structures in the universe), which contain very few or no galaxies.
New!!: Dark energy and Void (astronomy) · See more »
Wilkinson Microwave Anisotropy Probe
The Wilkinson Microwave Anisotropy Probe (WMAP), originally known as the Microwave Anisotropy Probe (MAP), was a spacecraft operating from 2001 to 2010 which measured temperature differences across the sky in the cosmic microwave background (CMB) – the radiant heat remaining from the Big Bang.
New!!: Dark energy and Wilkinson Microwave Anisotropy Probe · See more »
Zero-point energy
Zero-point energy (ZPE) or ground state energy is the lowest possible energy that a quantum mechanical system may have.
New!!: Dark energy and Zero-point energy · See more »
2dF Galaxy Redshift Survey
In astronomy, the 2dF Galaxy Redshift Survey (Two-degree-Field Galaxy Redshift Survey), 2dF or 2dFGRS is a redshift survey conducted by the Anglo-Australian Observatory (AAO) with the 3.9m Anglo-Australian Telescope between 1997 and 11 April 2002.
New!!: Dark energy and 2dF Galaxy Redshift Survey · See more »
Redirects here:
Dark Energy, Dark repulsive force theory, Negative gravity.
References
[1] https://en.wikipedia.org/wiki/Dark_energy