Tag

Cold Dark Matter

All articles tagged with #cold dark matter

science1 year ago•4 min saved

Challenging Paradigms: Dark Matter, Biology, and Fracking Quakes

Recent findings challenge the cold dark matter theory as the James Webb Space Telescope reveals unexpectedly massive early galaxies, potentially supporting modified Newtonian dynamics. Meanwhile, a new biological paradigm, holobiont biology, emphasizes the role of microbes in organism development and evolution. In energy news, regulatory measures in Oklahoma have reduced fracking-induced earthquakes, suggesting that controlling injection depths could mitigate seismic activity.

via Phys.org|

#cold-dark-matter #fracking #holobiont-biology

science2 years ago•3 min saved

"Revolutionary Dark Matter Theory Solves Astrophysics Puzzles and Unveils Cosmic Secrets"

A new theory called "self-interacting dark matter" (SIDM) proposes that dark matter particles can collide with each other through a dark force. Researchers led by Hai-Bo Yu from the University of California, Riverside, conducted simulations and found that SIDM can explain two astrophysics puzzles: the high-density dark matter halo in a massive elliptical galaxy and the extremely low densities of dark matter halos in ultra-diffuse galaxies. These findings challenge the prevailing cold dark matter theory and suggest that dark matter may be more complex than previously thought. The study highlights the importance of astrophysical observations and computer simulations in understanding dark matter.

via Phys.org|

#astrophysics #cold-dark-matter #dark-matter

science2 years ago•5 min saved

ALMA Reveals Dark Matter's Intricate Imprint on the Universe

Researchers using the Atacama Large Millimeter/submillimeter Array (ALMA) have detected fluctuations in the distribution of dark matter on scales smaller than massive galaxies, providing important insights into the structure of the Universe. This observation supports the cold dark matter model and reveals dark matter fluctuations at a scale of 30,000 light-years, affirming its presence even on smaller scales. The findings contribute to our understanding of the true nature of dark matter and its role in the formation of structures in the Universe.

via SciTechDaily|

#alma #cold-dark-matter #dark-matter

astronomy2 years ago•3 min saved

Unveiling the Enigmatic Mapping of Dark Matter in Space

Scientists have used a gravitational lens to map the distribution of dark matter on the smallest scale ever observed, with a resolution of 30,000 light-years. By analyzing the distorted light from a gravitationally lensed galaxy, researchers were able to subtract the effects of visible matter and create a detailed map of the dark matter. The map supports the theory of cold dark matter, revealing clumps of dark matter within galaxies and in the spaces between. This breakthrough provides a powerful tool for understanding the elusive nature of dark matter and narrowing down its properties.

via ScienceAlert|

#astronomy #cold-dark-matter #cosmic-distribution

astronomy2 years ago•6 min saved

Explosive Potential: Dark Matter Accumulation in Dead Stars

Astronomers are using gravitational lenses and advanced telescopes like the James Webb Space Telescope (JWST) to search for evidence of dark matter in the form of small clumps or halos. Recent studies have produced contradictory findings, with some suggesting the existence of fuzzy dark matter and others ruling it out. Researchers are also studying stellar streams and binary stars to look for anomalies that could be caused by interactions with dark matter. While no definitive evidence has been found yet, upcoming technology and observatories like the JWST, the Nancy Grace Roman Space Telescope, and the Vera C. Rubin Observatory hold promise for deeper exploration of dark matter structures in the universe.

via Quanta Magazine|

#astronomy #cold-dark-matter #dark-matter