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Archive for the ‘cosmology’ category: Page 72

Jan 21, 2024

Scientists observe strange lights in the heart of the Milky Way

Posted by in category: cosmology

Astronomers spot periodic lights coming from near the black hole at the center of our galaxy.

Jan 21, 2024

Astronomers Discover the Oldest Known Black Hole, Breaking a Record Set Last Year

Posted by in category: cosmology

The supermassive structure dates to about 400 million years after the Big Bang, and it’s particularly large for its age.

Jan 20, 2024

Structure of Space-Time Video

Posted by in category: cosmology

A Visual Model of Space and Time linking Gravity, Dark Energy, Black Holes, and Inertia.

Jan 20, 2024

Lee Smolin — How are Multiple Universes Generated?

Posted by in categories: cosmology, quantum physics

Cosmologists believe that multiple universes really exist; they call the whole vast collection, which might even be infinite in number, the ‘multiverse’. But how are all these universes generated? There are several ways, each radically different from the others, each incredibly fascinating, each capable of generating infinite universes.

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Jan 19, 2024

2303.0083v2-3.pdf

Posted by in category: cosmology

Relationship of the photon to cosmology and the origin of the universe.


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Jan 19, 2024

New study: universe rapidly expanding, consistent with century-old Einstein theory

Posted by in category: cosmology

A group of over 400 scientists have spent the last decade studying supernovae with unprecedented results about the expansion of space and the role of dark energy.

Jan 19, 2024

Discovery of new ultra-large cosmic structure challenges our understanding of the universe

Posted by in category: cosmology

The discovery of a second ultra-large structure in the remote universe has further challenged some of the basic assumptions about cosmology.

The Big Ring in the Sky is 9.2 billion light-years from Earth. It has a diameter of about 1.3 billion light-years, and a circumference of about 4 billion light-years. If we could step outside and see it directly, the diameter of the Big Ring would need about 15 full moons to cover it.

It is the second ultra-large structure discovered by University of Central Lancashire (UCLan) Ph.D. student Alexia Lopez who, two years ago, also discovered the Giant Arc in the Sky. Remarkably, the Big Ring and the Giant Arc, which is 3.3 billion light-years across, are in the same cosmological neighborhood—they are seen at the same distance, at the same cosmic time, and are only 12 degrees apart in the sky.

Jan 19, 2024

Are tiny black holes hiding within giant stars?

Posted by in category: cosmology

Phenomenon could account for universe’s mysterious dark matter.

Jan 19, 2024

Universe’s oldest and farthest black hole ever discovered by Scientists | WION

Posted by in category: cosmology

Researchers have identified the oldest black hole ever observed, dating from the beginning of the universe, and determined that it is ‘eating’ its host galaxy to death. The study, published in the journal Nature, used the James Webb Space Telescope (JWST) to locate the black hole, which formed 400 million years after the Big Bang, more than 13 billion years ago.

#blackhole #jameswebbspacetelescope #wion.

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Jan 19, 2024

Oldest Black Hole Ever Observed Is Found Close To The Beginning Of Time

Posted by in category: cosmology

Researchers using the James Webb Space Telescope have uncovered the oldest black hole ever detected—and declared a new era in astronomy.

It was found at the center of GN-z11, a galaxy first discovered in 2017, about 13.4 billion light-years away from our Milky Way galaxy—but about 100 times smaller. That means it exists just 400 million years after the Big Bang, which is thought to have created the universe. However, the black hole looks to be about a billion years old, suggesting problems with theories about how quickly black holes form.

The discovery, announced in a paper published today in the journal Nature, is the result of the sensitivity of JWST, which can see deep into the infrared, detecting old light that has been traveling across deep since the dawn of time.

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