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Archive for the ‘cosmology’ category: Page 85

Dec 29, 2023

Astronomers inspect a peculiar nuclear transient

Posted by in categories: chemistry, cosmology, physics

An international team of astronomers has employed a set of space telescopes to observe a peculiar nuclear transient known as AT 2019avd. Results of the observational campaign, presented in a paper published December 21 on the pre-print server arXiv, deliver important insights into the properties and behavior of this transient.

Nuclear astrophysics is key to understanding supernova explosions, and in particular the synthesis of the chemical elements that evolved after the Big Bang. Therefore, detecting and investigating nuclear transient events could be essential in order to advance our knowledge in this field.

At a redshift of 0.028, AT 2019avd is a peculiar nuclear transient discovered by the Zwicky Transient Facility (ZTF) in 2009. The transient has been detected in various wavelengths, from radio to soft X-rays, and has recently exhibited two continuous flaring episodes with different profiles, spanning over two years.

Dec 28, 2023

The secrets of Einstein’s unknown equation — with Sean Carroll

Posted by in categories: cosmology, information science, space travel

Did you know that Einstein’s most important equation isn’t E=mc^2? Find out all about his equation that expresses how spacetime curves, with Sean Carroll.

Buy Sean’s book here: https://geni.us/AIAOUHn.
YouTube channel members can watch the Q&A for this lecture here: • Q&A: The secrets of Einstein’s unknow…

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Dec 28, 2023

Can a New Law of Physics Explain a Black Hole Paradox?

Posted by in categories: blockchains, cosmology, encryption, quantum physics, robotics/AI

When the theoretical physicist Leonard Susskind encountered a head-scratching paradox about black holes, he turned to an unexpected place: computer science. In nature, most self-contained systems eventually reach thermodynamic equilibrium… but not black holes. The interior volume of a black hole appears to forever expand without limit. But why? Susskind had a suspicion that a concept called computational complexity, which underpins everything from cryptography to quantum computing to the blockchain and AI, might provide an explanation.

He and his colleagues believe that the complexity of quantum entanglement continues to evolve inside a black hole long past the point of what’s called “heat death.” Now Susskind and his collaborator, Adam Brown, have used this insight to propose a new law of physics: the second law of quantum complexity, a quantum analogue of the second law of thermodynamics.

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Dec 28, 2023

Where Did Dark Matter And Dark Energy Come From?

Posted by in categories: cosmology, quantum physics

Claim your SPECIAL OFFER for MagellanTV here: https://try.magellantv.com/historyoftheuniverse. Start your free trial TODAY so you can watch Other Earths: The Search For Habitable Planets, and the rest of MagellanTV’s science collection: https://www.magellantv.com/video/other-earths-the-search-for-habitable-planets.

If you like this video, check out Geraint Lewis´ excellent book, co-written with Chris Ferrie:
Where Did the Universe Come From? And Other Cosmic Questions: Our Universe, from the Quantum to the Cosmos.

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Dec 27, 2023

Is Betelgeuse About to Become a Supernova?

Posted by in category: cosmology

The famous red giant has behaved oddly in recent years and astronomers now believe the end is close.

Dec 27, 2023

Have we found filaments of pure energy unleashed during the big bang?

Posted by in category: cosmology

Puzzling ancient galaxies and oddly shaped clusters suggest we have glimpsed cosmic strings travelling at the speed of light – and with them clues to a deeper theory of reality.

By Dan Falk

Dec 27, 2023

Redefining Cosmic Norms: Dwarf Galaxies and the Dark Matter Enigma

Posted by 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.

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Dec 27, 2023

What Happens Inside a Proton?

Posted by 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 in categories: cosmology, physics, space travel

News space, astronomy, NASA, spacex, astrophysics, sun, moon.

Dec 26, 2023

Scientists Hope That Their Discovery About Black Holes is a Mistake. Here is What They Discovered

Posted by in categories: cosmology, physics, space travel

News space, astronomy, NASA, spacex, astrophysics, sun, moon.

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