The big bang has causality issues, particularly the "horizon problem." I critique suggested solutions like cosmic inflation and negentropy, arguing that they require unproven concepts. The Creator, as described in the Bible, provides a coherent explanation without causality violations, in contrast with those scientific storytelling fairy tales for adults.

The anthropic principle posits that the universe’s physical constants are fine-tuned for life, which is a problem for big bang cosmology. On the Genesis Science Network we discuss the theoretical proposal of a test of the anthropic principle via a proposed ultralight axionic dark-matter particle.

I presented on the subject of problems for the big bang on the YouTube channel Standing for Truth Ministries. I discussed the most common problems the big bang theory has, the contradictions, fudge factors and failures.

Since 2015, black holes have gained attention in astronomy, particularly regarding their potential role in discovering elusive dark matter particles like dark photons. Superradiance, a theoretical process, could theoretically boost these particles' energies near black holes. However, the absence of observed superradiance raises questions about dark matter's complexity and the validity of existing cosmological theories.

Dark matter is equated to the metaphor of the Emperor's new clothes. Dark photons and other hypothetical particles are fictitious constructs used to explain phenomena without concrete evidence, underlining that current astrophysical models are flawed and nonsensical.

The anthropic principle posits that the universe's physical constants are fine-tuned for life, a concept scrutinized in light of new theoretical research on ultralight axions. If dark matter isn’t primarily axionic, it poses challenges to this principle, questioning the universe's inherent design while pushing materialists to seek explanations devoid of a Creator.

I question the acceptance of Dark Matter and Dark Energy by biblical creationists, suggesting they are problematic placeholders for undiscovered physics. The arguments for their existence are challenged by alternative cosmological models and criticisms of observational methodologies, calling for a re-evaluation of accepted astrophysical tenets.

How much of cosmology is fiction? What are the fudge factors. How much is being fudged. Are there insurmountable problems with our current model of big bang cosmology?

Big bang cosmology faces unresolved problems with the standard ΛCDM model needing unknown fudge factors. A new timescape cosmology, where time passes faster or slower in voids and filaments of the cosmic web, may resolve the Dark Energy problem, but it indicates a need to rethink the foundations of cosmology.

Dark matter is one of the biggest mysteries of modern science, because we can’t see it, touch it or feel it with our current instruments, and yet, we know it’s there because we can see how it affects galaxies, and its presence is felt through its gravity. Light bends around it as it travels across […]

The post 10 Dark Matter Facts That Will Surprise You appeared first on Curiosmos.

Mathematicians from University College London and the University of California, Davis, have published a mathematical proof that the Universe’s accelerating expansion can be explained without dark energy, dealing a serious blow to the Lambda-cold dark matter model.

The post Is Dark Energy Unnecessary? Mathematicians Challenge Standard Cosmological Model of Universe appeared first on Sci.News: Breaking Science News.

The universe is around 14 billion years old, but scientists theorize that no stars formed for the first several hundred million years, during an era known as the cosmic dark ages. They refer to the first billion years or so after this, when stars formed, as the cosmic dawn. At that time, the very oldest galaxies first assembled from collections of gas and plasma. 

As these galaxies assembled and more material became available, the number of stars formed each year increased. Around 2 to 3 billion years after the Big Bang, galaxies grew faster than they ever would, producing stars at the highest rate in the universe’s history. This era is called cosmic noon.

Researchers from the Netherlands recently investigated 3 distant galaxies whose light began its journey to Earth during cosmic noon. They selected targets from a set of ancient star-forming galaxies identified in the ALMA – Archival Large Program to Advance Kinematic Analysis or ALMA-ALPAKA project. Of these, they chose to study 3 galaxies labeled ID1, ID3, and ID13.

They combined 2 different types of data to produce a detailed description of these galaxies. First, they collected data from an enormous telescope comprising 66 antennas in Chile, known as the Atacama Large Millimeter/submillimeter Array or ALMA. They used ALMA to detect radio-wave emissions from carbon monoxide and elemental carbon in these galaxies. The researchers stated that studying these chemicals in distant galaxies could reveal how their free-floating gas clouds move. They also used publicly available data from JWST’s Near Infrared Camera, or NIRCam, to determine how much light the galaxies’ stars emitted. By analyzing cosmic noon galaxies in multiple different ways, the team aimed to measure their masses and the relative contributions of regular matter and dark matter.

They used a computer program developed by other astronomers to interpret the JWST data as a series of maps showing the distribution of stars across each galaxy. They used this light-emission data to estimate the total mass of all the stars in these galaxies. Then they developed an original computer program to map the distribution of gas through each galaxy using the ALMA data. The team used these maps to create plots, known as rotation curves, which show how fast particles orbit each galaxy’s center as a function of their distance from it. 

The astronomers used these rotation curves to estimate the amount of dark matter in each galaxy. They explained that this method works because dark matter is totally invisible, but it still exerts a gravitational pull. Its gravitational pull causes visible material like stars and gas closer to the edges of these galaxies to move faster than they would in galaxies without dark matter. 

The team found that these galaxies had between 39 and 80 billion times the mass of our sun, or solar masses, in stars. They had between 4 billion and nearly 16 billion solar masses worth of free-floating gas. And they had from 1 trillion to 31 trillion solar masses of dark matter.

However, when the team compared the light-emission data with the rotation curves, they found a discrepancy. Typically, dark matter resides in a shell or halo surrounding a galaxy, meaning it should mostly affect material near the galaxy’s outer edge. Since astronomers don’t usually have to account for dark matter near a galaxy’s center, they can calculate the total mass of center material based on the amount of gas and stars they see there. But near the centers of these galaxies, the team found that the masses they derived from the light emissions were less than what they calculated from the rotation curves. 

They proposed multiple potential explanations for this discrepancy. First, they suggested that the halo shape might not be a good model for the dark matter distribution in all galaxies, meaning that cosmic noon galaxies could contain dark matter near their centers. Second, they suggested that stars could be packed tightly in the center of these galaxies, blocking each other’s light emissions. Third, they suggested that galaxy ID1 could have a supermassive black hole as big as 1.5% its total stellar mass at its center.

The team concluded that they now have a detailed picture of the mass distribution in these cosmic noon galaxies, but the reason for their center mass discrepancies remains elusive. They suggested that a complex relationship exists between the dark matter halos and the rest of the material within these galaxies. They indicated that future astronomers could adapt their methods to study the distribution of material in other distant galaxies studied by ALMA-ALPAKA and forthcoming galactic surveys.

The post Characterizing galaxies at “cosmic noon” appeared first on Sciworthy.