Tag: matter,

  • Dark Matter: Scientists Consider Alternative Theories with ‘Mirror Universe’

    Dark Matter: Scientists Consider Alternative Theories with ‘Mirror Universe’

    Scientists are exploring the possibility of a ‘mirror universe’ as a potential explanation for the elusive dark matter that remains undetected in our universe. This theory proposes that dark matter exists in a parallel realm, where atoms failed to form during the Big Bang’s nucleosynthesis.

    Dark matter

    Dark matter is thought to make up about 85% of the universe ‍and it has puzzled scientists due to its invisibility and resistance to detection. Traditional theories have fallen short in explaining its nature which leads researchers to consider alternative ideas. One such theory suggests the existence of a ‘dark mirror’ universe where dark matter resides.

    In this hypothetical scenario, every interaction in our universe would have a corresponding interaction in the dark matter universe establishing a new kind of universal symmetry. While conventional matter in our universe consists of protons and neutrons with roughly equal mass, the ‘dark mirror’ universe may feature different properties, potentially leading to the formation of ‘dark neutrons’ instead of protons.

    The concept proposes that these ‘dark neutrons’ could form bound states and larger nuclei during a hypothetical ‘dark Big Bang Nucleosynthesis.’ These nuclei, composed of pure ‘dark neutrons,’ could serve as valid candidates for dark matter.

    This idea builds upon previous research suggesting the existence of a ‘dark periodic table’ with its own set of elements in the ‘dark mirror’ universe. While speculative, this theory offers a new perspective on the nature of dark matter and its potential origins.

    Some scientists have proposed that stars composed of dark matter could exist in this alternate universe. These ‘dark matter’ stars might interact differently with normal matter, offering a potential means of observation. The existence of such stars remains uncertain, and their detection would require further investigation.

  • New Study Challenges Existence of Dark Matter in the Universe

    New Study Challenges Existence of Dark Matter in the Universe

    Professor Rajendra Gupta from the University of Ottawa suggests that dark matter might not exist by analyzing changes in forces over time and the behavior of light in the universe. Dark matter is considered as a mysterious substance and it is believed to make up a significant part of the cosmos. It has been a fundamental component of the traditional model of the universe alongside ‘normal matter’ and ‘dark energy.’

    Dark Matter

    Dark matter does interact with electromagnetic radiation and has never been directly observed. It is inferred from its gravitational effects on visible matter. Gupta’s study questions the necessity of dark matter in explaining these phenomena.

    A recent study proposes an alternative view and it is suggesting that our universe may not contain dark matter. This challenges our current understanding of the universe and the role of dark matter within it.

    Rajendra Gupta’s study utilizes a combination of the covarying coupling constants (CCC) and “tired light” (TL) theories to develop a model (CCC+TL) that explains cosmic phenomena without the need for dark matter.

    Accelerated expansion of the universe could be attributed to the weakening forces of nature as the universe expands, rather than dark energy as previously thought. Gupta’s model proposes an alternative explanation for observed cosmological phenomena.

    The study’s findings challenge the conventional understanding of dark matter and its role in the universe. Gupta’s research suggests that dark energy may not be required to explain the accelerated expansion of the universe. His study is the first to eliminate the cosmological existence of dark matter while remaining consistent with key cosmological observations.

    There are several papers questioning the existence of dark matter, but his study provides a unique perspective. The study titled “Testing CCC+TL Cosmology with Observed Baryon Acoustic Oscillation Features” was published in the Astrophysical Journal.

  • Mysteries of the Cosmic Web: Dark Matter, Gas and Galaxies

    Mysteries of the Cosmic Web: Dark Matter, Gas and Galaxies

    The cosmic web is a big part of how the universe is structured. It is made up of dark matter, gas, and galaxies. When we look at the universe, we see that galaxies are not just scattered randomly. They are organized in a way that scientists call the large-scale structure of the universe. The cosmic web is a key part of this structure.

    cosmic web

    In simple terms, the cosmic web is made up of three main things: dark matter, gas, and galaxies. Dark matter is the most abundant, making up about five-sixths of the cosmic web. Dark matter doesn’t interact with light, but it has a strong gravitational pull. It acts like a framework for galaxies and clusters of galaxies to form. The other part (one-sixth) of the cosmic web is made of regular matter: baryons like protons and neutrons, and electrons. This matter exists as intergalactic gas or as the stuff in galaxies, like stars, gas, and dust.

    The gas in the cosmic web can be hot or cold, depending on where it is. The gas in galaxy clusters is usually very hot, reaching temperatures of tens of millions of degrees. Scientists call this intracluster gas or the intracluster medium (ICM). The ICM gives off X-rays that scientists can observe. It helps us understand how mass is spread in clusters and the history of how clusters formed. The ICM also affects how galaxies evolve in the cosmic web. It can take gas away from galaxies, stopping new stars from forming.

    On the other hand, the gas in the filaments of the cosmic web, connecting galaxy clusters and superclusters, is usually colder, ranging from thousands to tens of thousands of degrees. This gas is known as the warm-hot intergalactic medium (WHIM). It’s challenging to observe the WHIM directly because it’s not as hot or dense as the gas in the ICM. The light it gives off doesn’t travel far in the universe before being absorbed. Still, scientists think the WHIM is an important part of the matter in the universe. It might also be crucial for helping galaxies grow by providing fuel for new stars to form.

    Galaxies are found in clusters and superclusters, and they are part of the cosmic web. Throughout their existence, galaxies interact with the gas in the cosmic web. Gas from the web falls into galaxies, helping create new stars. At the same time, gas inside galaxies is pushed into the cosmic web by things like winds from supernovae and active supermassive black holes. These interactions could be the key to understanding how galaxies change over time.