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Archive for the ‘cosmology’ category: Page 69

Jun 7, 2023

Is there an infinite universe? According to scientists, our universe has no beginning

Posted by in categories: cosmology, evolution, quantum physics, singularity

The Big Bang, traditionally considered the birth of the universe about 14 billion years ago, is being questioned. Physicist Bruno Bento and his team have proposed compelling research suggesting the universe may have always existed, and the Big Bang may merely be a significant event in its continuous evolution.

Bruno Bento and his colleagues set out to examine what the universe’s inception might have looked like without a Big Bang singularity. They grappled with contradictions arising when comparing accepted theories, particularly those dealing with quantum physics and general relativity. While quantum physics has accurately described three of the four fundamental forces of nature, it struggles to incorporate gravity. On the other hand, general relativity offers a comprehensive explanation of gravity, but falters when dealing with black holes’ centers and the universe’s genesis.

These contentious areas, termed “singularities,” are points in space-time where established physical laws cease to apply. Intriguingly, computations indicate an immense gravitational pull within singularities, even on a minuscule scale.

Jun 7, 2023

Hundreds of ancient, invisible structures discovered near our galaxy’s center

Posted by in category: cosmology

Radio astronomers have discovered hundreds of long, thin structures emanating from our galaxy’s supermassive black hole.

Jun 7, 2023

In New Paradox, Black Holes Appear to Evade Heat Death

Posted by in categories: cosmology, quantum physics

The puzzling behavior of black hole interiors has led researchers to propose a new physical law: the second law of quantum complexity.

Jun 7, 2023

Scientists believe they recently discovered a Parallel Universe

Posted by in category: cosmology

A groundbreaking revelation has the scientific community buzzing: a possible encounter with a parallel universe. Researchers suggest that signs from the universe’s furthest reaches may indicate another vastly different universe has touched ours, potentially disrupting our universe’s fabric. This interpretation could validate the multiverse theory.

Researcher Dr. Ranga-Ram Chary examined the cosmic microwave background’s noise and residual signals — the remnants of the Big Bang. He discovered several sporadic bright spots, which he speculates could be the echo of our universe colliding with another billions of years ago.

This interpretation is tentative, but aligns with some cosmological theories suggesting that interactions between alternative universes could occur. These theories propose our universe is merely one bubble among countless others. Once a universe initiates in a Big Bang-like event, it perpetually expands. This rule applies to all universes, implying periodic intersections could occur.

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Jun 6, 2023

What’s the (dark) matter with Euclid?

Posted by in category: cosmology

Euclid is ESA’s mission to shed light on dark matter and dark energy, but teams at the Agency’s mission control centre in Darmstadt, Germany, are also in the dark. A series of problems have befallen the mission in pre-launch simulations.

Currently about halfway through the Euclid simulations campaign, the key focus in the Main Control Room is the Launch and Early Orbit Phase (LEOP) and spacecraft commissioning.

These are the two most critical moments in a mission’s life; as it wakes up after the rigours of launch, makes its first manoeuvres towards its target destination and as its instruments are commissioned.

Jun 4, 2023

Everything Will Evaporate

Posted by in categories: cosmology, particle physics, quantum physics

Even space and time if it’s quantum.


What will be the ultimate fate of our universe? There are a number of theories and possibilities, but at present the most likely scenario seems to be that the universe will continue to expand, most mass will eventually find its way into a black hole, and those black holes will slowly evaporate into Hawking Radiation, resulting in what is called the “heat death” of the universe. Don’t worry, this will likely take 1.7×10106 years, so we got some time.

But what about objects, like stellar remnants, that are not black holes? Will the ultimate fate of the universe still contain some neutron stars and cold white dwarfs that managed to never get sucked up by a black hole? To answer this question we have to back up a bit and talk about Hawking Radiation.

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Jun 4, 2023

Scientists ‘stunned’

Posted by in categories: cosmology, physics

An international team of astrophysicists has discovered hundreds of mysterious structures in the centre of the Milky Way.

The one-dimensional cosmic threads are made up of hundreds of horizontal or radial filaments, slender, elongated bodies of luminous gas that potentially originated a few million years ago — and seem to be pointing the direction of the black hole.

“I was actually stunned when I saw these. We had to do a lot of work to establish that we weren’t fooling ourselves,” added Yusef-Zadeh, who’s also a member of the Center for Interdisciplinary Exploration and Research in Astrophysics.

Jun 3, 2023

Joscha Bach: Time, Simulation Hypothesis, & Existence

Posted by in categories: cosmology, economics, education, government, information science, mathematics, quantum physics, robotics/AI

Joscha Bach is a cognitive scientist focusing on cognitive architectures, consciousness, models of mental representation, emotion, motivation and sociality.

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Jun 3, 2023

Listen to the Astonishing ‘Chirp’ of Two Black Holes Merging

Posted by in category: cosmology

Some of the most violent cosmic collisions occur silently in the vacuum of space, but with the right instrumental ears, we can still hear it happen. Here’s how.

Jun 3, 2023

New Discovery Challenges Fundamental Beliefs of Astronomy: Giant Arc of Galaxies Spanning 3.3 Billion Light-Years Discovered

Posted by in categories: cosmology, mapping

A recently discovered formation of galaxies spanning 3.3 billion light-years is one of the largest known structures in the universe, contradicting some of the most fundamental beliefs of astronomers about the cosmos. The Giant Arc is composed of galaxies, galaxy clusters, and a significant amount of gas and dust. It is located 9.2 billion light-years away and covers approximately one-fifteenth of the visible universe.

The discovery was “fortuitous,” according to Alexia Lopez, a doctoral candidate in cosmology at the University of Central Lancashire (UCLan) in the United Kingdom. Lopez was creating maps of the night sky using light from around 120,000 quasars, which are the bright centres of galaxies where supermassive black holes consume matter and generate energy.

By measuring magnesium’s imprints, Lopez could calculate the distance to the intervening gas and dust, as well as the composition of the substance. The quasars were used as “spotlights in a dark room,” illuminating the intervening matter, according to Lopez. A structure began to emerge in the middle of the cosmic maps, a massive arc that was an indication of the Giant Arc.

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