Dispatches From Turtle Island

Mach's principle is basically that inertia is a product of the combined gravitational pulls of everything in the Universe (although it ...

One of the cleaner solutions in physics to the idea of the Big Bang in cosmology is one in which the universe extends infinitely forward and...

A new calculation of the predicted value of the observable N(eff) (for the effective number of neutrinos) from cosmology data when there ar...

The available evidence constrains changes in the strong force coupling constant over time (implicitly, through the quantum chromodynamics en...

A new study, that doesn't rely on the micro-lensing and Hawking radiation exclusions which are the primary methods for constraining prim...

Gravity is an infinite range force. In isolated circumstances, gravitational pulls from opposite directions can cancel out. But, the vast ma...

The Hubble tension has, for whatever reason, been treated as a more serious challenge to the LambdaCDM "standard model of cosmology...

A fairly short new paper (five pages plus seven pages of footnotes and an appendix) tries to list most or all of the possible Grand Unified ...

Assuming the data has a Gaussian distribution (i.e. is distributed in a "normal" probability curve) is often reasonable, since thi...

This six page article is just a conference paper summary of a much more involved modified gravity theory and its implications. The abstract ...

Connor et al. assess that about 3/4 of all baryons are in the intergalactic medium (IGM), give or take 10% – the side bars illustrate the ra...

An interesting GR based response to dark matter and dark energy that makes one subtle adjustment to the standard analysis. I'll have to ...

The reasoning in this article is sound and means that quantum gravity should preserve Charge-Parity-Time (CPT) symmetry, not just in an emer...

The missing baryon problem is that we can't find where all of the ordinary matter that should exist is located. New studies such as this...

In my view, this analysis is too critical and misses key achievements of MOND-derived theories in the cosmology realm (while doing to little...

Stacy McGaugh's latest post at his Triton Station blog explains why Big Bang Nucleosynthesis (BBN) poses a challenge to the LambdaCDM S...

I'm skeptical of all of the theories described in the abstract below, but I lack the expertise to say with confidence that none of them ...

Overview: An Improvement But Worse Than MOND Another day, another dark matter particle model .  This time, a spin-0 massive scalar boson and...