Add to ORKGI examine the counterintuitive claim from Davis et.al. that a stationary or receding galaxy in an expanding universe may exhibit blueshift, even when the universe contains no gravitating matter. I show that with more precise calculations the effect disappears for the empty universe. I also discuss how this is related to the currently popular idea of ‘expanding space’, looking at how this idea arose, and why I think it has serious flaws
The standard model of expanding universe is based on the theory of general relativity (GR) which ass...
Componente Curricular::Ensino Médio::FísicaIn the 1920s, American astronomer Edwin Hubble discovered...
<p>This comment refers to "Celestial ephemerides in an expanding universe" by Sergei M. Kopeikin - P...
We use the dynamics of a galaxy, set up initially at a constant proper distance from an observer, to...
I don't dispute the online articles that state the James Webb Space Telescope never disproved the Bi...
Consider radar ranging of a distant galaxy in a Friedman-Lemaitre cosmological model. In this model ...
The concept of expanding space has come under fire recently as being inadequate and even misleading ...
While it remains the staple of virtually all cosmological teaching, the concept of expanding space i...
The debate on the ontological status of spacetime in General Relativity has historically seen two pr...
[[abstract]]The big-bang theory is arguably one of the most fascinating and significant theories in ...
In this contribution I wish to address the question whether, and how, the global cosmological expans...
Abstract: While it remains the staple of virtually all cosmological teaching, the concept of expandi...
Abstract: Conventional cosmology is based on (i) the Edwin Hubble discovery of the relationship betw...
The interpretation of the expanding universe as an expansion of space has recently been challenged. ...
The expansion of the universe is often viewed as a uniform stretching of space that would affect com...
The standard model of expanding universe is based on the theory of general relativity (GR) which ass...
Componente Curricular::Ensino Médio::FísicaIn the 1920s, American astronomer Edwin Hubble discovered...
<p>This comment refers to "Celestial ephemerides in an expanding universe" by Sergei M. Kopeikin - P...
We use the dynamics of a galaxy, set up initially at a constant proper distance from an observer, to...
I don't dispute the online articles that state the James Webb Space Telescope never disproved the Bi...
Consider radar ranging of a distant galaxy in a Friedman-Lemaitre cosmological model. In this model ...
The concept of expanding space has come under fire recently as being inadequate and even misleading ...
While it remains the staple of virtually all cosmological teaching, the concept of expanding space i...
The debate on the ontological status of spacetime in General Relativity has historically seen two pr...
[[abstract]]The big-bang theory is arguably one of the most fascinating and significant theories in ...
In this contribution I wish to address the question whether, and how, the global cosmological expans...
Abstract: While it remains the staple of virtually all cosmological teaching, the concept of expandi...
Abstract: Conventional cosmology is based on (i) the Edwin Hubble discovery of the relationship betw...
The interpretation of the expanding universe as an expansion of space has recently been challenged. ...
The expansion of the universe is often viewed as a uniform stretching of space that would affect com...
The standard model of expanding universe is based on the theory of general relativity (GR) which ass...
Componente Curricular::Ensino Médio::FísicaIn the 1920s, American astronomer Edwin Hubble discovered...
<p>This comment refers to "Celestial ephemerides in an expanding universe" by Sergei M. Kopeikin - P...