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Archive for the ‘cosmology’ category: Page 12

Aug 17, 2024

James Webb Telescope May Have Finally Solved the Crisis in Cosmology

Posted by in category: cosmology

The “crisis in cosmology,” sparked by differing measurements of the universe’s expansion, may be nearing a resolution thanks to the James Webb Space Telescope. New data analyzed by scientists suggests that the Hubble tension might not be as severe as previously thought. This could mean our current model of the universe remains accurate.

The Debate on the Universe’s Expansion Rate

We know many things about our universe, but astronomers are still debating exactly how fast it is expanding. In fact, over the past two decades, two major ways to measure this number — known as the “Hubble constant” — have come up with different answers, leading some to wonder if there was something missing from our model of how the universe works.

Aug 16, 2024

Huge Lake on Mars // Fate of Milkdromeda // Hope for VIPER Rover

Posted by in categories: cosmology, engineering, environmental, existential risks

Vast amounts of water found on Mars, but there’s a catch, Milky Way and Andromeda might not merge after all, a planet found before it gets destroyed, and an easier way to terraform Mars.

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Aug 16, 2024

Astrophotographers capture rare Jupiter and Mars encounter (photos)

Posted by in category: cosmology

The two planets came as close as within a quarter-of-a-degree, or about 50% of the angular size of the lunar disk.

Lorenzo Di Cola also captured the conjunction over L’Aquila Italy. Both Jupiter and Mars were visible to the naked eye in the constellation Taurus during the cozy meet-up.

The photographer also took this amazing composition image made up of nine interval timer photos showing the two planets rising through the sky. Mars and Jupiter are visible in conjunction and if you look carefully you can even see some of Jupiter’s moons.

Aug 16, 2024

Breathtaking timelapse of the Milky Way takes 10 years to create

Posted by in category: cosmology

Shooting timelapse is a complex process that requires skill and patience, which an astrophotographer considers to be the most important thing for its creation.

Aug 16, 2024

We might be transported into a parallel universe by the Large Hadron Collider in an experiment

Posted by in categories: cosmology, particle physics

Scientists Can Now Test for Extra Dimensions and Unveil New Realities with the LHC

TL;DR

The Large Hadron Collider (LHC) is pushing the boundaries of physics by enabling scientists to search for the Higgs Boson, explore the mysteries of dark matter, and potentially detect evidence of extra dimensions. Despite wild conspiracy theories claiming the LHC could open portals to parallel dimensions or create black holes, the reality is grounded in groundbreaking scientific exploration. The LHC may even briefly produce microscopic black holes, offering insights into the existence of extra dimensions without any danger to our planet. These discoveries could revolutionise our understanding of the universe.

Aug 15, 2024

Claudia de Rham

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

Avshalom Elitzur, Claudia de Rham and Harry Cliff debate the relationship between mystery and scientific discovery.

Does science eradicate mystery or expand it?

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Aug 14, 2024

Alexander Vilenkin — Why Did Our Universe Begin?

Posted by in categories: cosmology, quantum physics

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That the universe began seems astonishing. What brought it about? What forces were involved? How did the laws of nature generate the vast expanse of billions of galaxies of billions of stars and planets in the structures that we see today? What new physics was involved? What more must we learn?

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Aug 14, 2024

Newly found star 30 times the size of the sun has an unexpected chemical composition

Posted by in categories: chemistry, cosmology

J0524-0336 contains 100,000 times more lithium than the sun does at its current age. This amount challenges the prevailing models of how stars evolve.

Aug 14, 2024

A first definitive demonstration of nonthermal particle acceleration in magnetorotational turbulence

Posted by in categories: cosmology, particle physics

Researchers at the University of Colorado, Boulder; KU Leuven; the Flatiron Institute and the University of Wisconsin–Madison recently set out to answer a long-standing research question, specifically whether charged particles in the turbulent flows commonly surrounding black holes and other compact objects can be accelerated to very high energies.

Aug 13, 2024

Astronomers have found leftover ‘zombie star’ from supernova shone in the night sky 1,000 years ago

Posted by in categories: cosmology, innovation

The striking object appeared as bright as Saturn in the vicinity of the constellation Cassiopeia, and historical chronicles from China and Japan recorded it as a “guest star.”

Chinese astronomers used this term to signify a temporary object in the sky, often a comet or, as in this case, a supernova — a cataclysmic explosion of a star at the end of its life.

The object, now known as SN 1,181, is one of a handful of supernovas documented before the invention of telescopes, and it has puzzled astronomers for centuries.

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