Dec 27, 2023
Is Betelgeuse About to Become a Supernova?
Posted by Shubham Ghosh Roy in category: cosmology
The famous red giant has behaved oddly in recent years and astronomers now believe the end is close.
Archive for the ‘cosmology’ category: Page 71
Dec 27, 2023
Have we found filaments of pure energy unleashed during the big bang?
Posted by Dan Breeden in category: cosmology
Dec 27, 2023
Redefining Cosmic Norms: Dwarf Galaxies and the Dark Matter Enigma
Posted by Dan Breeden in categories: cosmology, satellites
Recent Gaia satellite findings suggest that dwarf galaxies are transient and less influenced by dark matter than previously believed, challenging long-held assumptions about their nature and composition.
Commonly thought to be long-lived satellites of our galaxy, a new study now finds indications that most dwarf galaxies might in fact be destroyed soon after their entry into the Galactic halo. Thanks to the latest catalog from ESA’s Gaia satellite, an international team has now demonstrated that dwarf galaxies might be out of equilibrium. The study opens important questions on the standard cosmological model, particularly on the prevalence of dark matter in our nearest environment.
Continue reading “Redefining Cosmic Norms: Dwarf Galaxies and the Dark Matter Enigma” »
Dec 27, 2023
What Happens Inside a Proton?
Posted by Shubham Ghosh Roy in categories: cosmology, media & arts, physics
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Dec 27, 2023
Physicists Have Finally Cracked Stephen Hawking’s Famous Black Hole Paradox
Posted by Shubham Ghosh Roy in categories: cosmology, physics, space travel
Dec 26, 2023
Scientists Hope That Their Discovery About Black Holes is a Mistake. Here is What They Discovered
Posted by Shubham Ghosh Roy in categories: cosmology, physics, space travel
Dec 26, 2023
‘Veil of death’: Giant star’s demise challenges stellar evolution theories
Posted by Shubham Ghosh Roy in category: cosmology
Contrary to established theories, the star’s supernova was enveloped in layers of dust, profoundly altering the expected shockwave dynamics.
Dec 26, 2023
Humans could use black holes as batteries, physics paper claims. Here’s how
Posted by Dan Breeden in categories: cosmology, physics
Black holes are some of the most powerful objects in the universe — and humans could devise ways to harness that power as an energy source, a new theoretical study claims.
Dec 26, 2023
Shapes of one million galaxies hint at the universe’s origins
Posted by Genevieve Klien in categories: cosmology, quantum physics
A recent study published in the journal Physical Review D marks a significant advancement in cosmology. A team of researchers has analyzed over one million galaxies to delve into the origins of the universe’s current cosmic structures.
This study contributes to the understanding of the ΛCDM model, the standard framework for the universe, which posits the significance of cold dark matter (CDM) and dark energy (the cosmological constant, Λ).
The model theorizes that primordial fluctuations, originating at the universe’s inception, acted as catalysts for the formation of all celestial objects, including stars, galaxies, and galaxy clusters.
Dec 25, 2023
Parasitic black holes could be hiding inside stars and even powering them
Posted by Dan Breeden in category: cosmology
Dark matter is one of the most mysterious things in the universe. But right up there in the same category are black holes — massive cosmic holes that seem to suck everything into them. Now, a new research paper posits that black holes and dark matter may go hand in hand thanks to parasitic black holes living inside of stars.
I know that’s a lot to take in, and I thought the same thing when I was reading through a new paper featured in The Astrophysical Journal . The new paper suggests that black holes might be living inside stars throughout the universe, eating away at them from the inside.
It’s a terrifying thesis and one that becomes even more terrifying when you think about the possibility of a black hole being inside our sun, eating away at it until the sun eventually dies. But just how much merit is there to this claim? Could parasitic black holes really be the cause of dark matter in the universe?
