Cosmology News

Courtesy of Science Daily

Welcome to Sea and Sky's Cosmology News. Here you can find links to the latest space news headlines about cosmology and astrophysics. Click on any yellow title below to view the full news article. The news article will open in a new browser window. Simply close the browser window when you are finished reading the article to return to the news article listing. You can use the "Click for More" link to go to a page with more news headlines.

 

Weighing in on the origin of heavy elements
Nuclear physicists conducted a physics experiment that utilizes novel techniques to study the nature and origin of heavy elements in the universe.
Publ.Date : Mon, 30 Mar 2020 18:16:56 EDT

ALMA resolves gas impacted by young jets from supermassive black hole
Astronomers obtained the first resolved image of disturbed gaseous clouds in a galaxy 11 billion light-years away by using the Atacama Large Millimeter/submillimeter Array (ALMA). The team found that the disruption is caused by young powerful jets ejected from a supermassive black hole residing at the center of the host galaxy. This result will cast light on the mystery of the evolutionary process of galaxies in the early Universe.
Publ.Date : Fri, 27 Mar 2020 11:37:55 EDT

Astronomers use slime mould to map the universe's largest structures
The behaviour of one of nature's humblest creatures and archival data from the NASA/ESA Hubble Space Telescope are helping astronomers probe the largest structures in the Universe.
Publ.Date : Thu, 26 Mar 2020 12:41:24 EDT

Holographic cosmological model and thermodynamics on the horizon of the universe
A holographic cosmological model with a power-law term has been proposed by a researcher to study thermodynamic properties on the horizon of the Universe. This model was found to satisfy the second law of thermodynamics. In addition, a relaxation-like process of the Universe was examined systematically to study maximization of the entropy on the horizon.
Publ.Date : Thu, 26 Mar 2020 10:13:54 EDT

Expanding universe: We may be in a vast bubble
The few thousand galaxies closest to us move in a vast 'bubble' that is 250 million light years in diameter, where the average density of matter is half as large as for the rest of the universe. This is the hypothesis put forward by a theoretical physicist to solve a conundrum that has been splitting the scientific community for a decade: at what speed is the universe expanding?
Publ.Date : Fri, 20 Mar 2020 19:27:53 EDT

On the origin of massive stars
A scene of stellar creation, captured by the NASA/ESA Hubble Space Telescope, sits near the outskirts of the famous Tarantula Nebula. This cloud of gas and dust, as well as the many young and massive stars surrounding it, is the perfect laboratory to study the origin of massive stars.
Publ.Date : Wed, 18 Mar 2020 10:44:25 EDT

Astronomers use slime mold model to reveal dark threads of the cosmic web
A computational approach inspired by the growth patterns of a bright yellow slime mold has enabled a team of astronomers and computer scientists to trace the filaments of the cosmic web that connects galaxies throughout the universe.
Publ.Date : Tue, 10 Mar 2020 12:47:08 EDT

'Axion' particle solves three mysteries of the universe
A hypothetical particle called the axion could solve one of physics' great mysteries: the excess of matter over antimatter, or why we're here at all.
Publ.Date : Tue, 10 Mar 2020 11:47:21 EDT

Discovery points to origin of mysterious ultraviolet radiation
Lyman-alpha blobs (LABs) are gigantic clouds of hydrogen gas that produce a special type of ultraviolet light known as Lyman-alpha emission. An extremely powerful energy source must produce this radiation, but scientists debate what that energy source is. A study of Lyman-alpha blob 6 (LAB-6) is the first LAB with strong evidence of an infalling gas feature. The findings suggest that star-forming galaxies are likely the primary energy source of Lyman-alpha radiation emitted from LAB-6.
Publ.Date : Mon, 09 Mar 2020 16:52:42 EDT

Is life a game of chance?
To help answer one of the great existential questions -- how did life begin? -- a new study combines biological and cosmological models. A professor looked at how life's building blocks could spontaneously form in the universe -- a process known as abiogenesis.
Publ.Date : Thu, 05 Mar 2020 13:20:51 EST

Scientists shed light on mystery of dark matter
Nuclear physicists are putting forward a new candidate for dark matter -- a particle they recently discovered called the d-star hexaquark.
Publ.Date : Tue, 03 Mar 2020 14:02:25 EST

Why is there any matter in the universe at all? New study sheds light
Scientists have measured a property of the neutron -- a fundamental particle in the universe -- more precisely than ever before.
Publ.Date : Fri, 28 Feb 2020 14:20:22 EST

Astronomers detect biggest explosion in the history of the Universe
Scientists studying a distant galaxy cluster have discovered the biggest explosion seen in the Universe since the Big Bang. The blast came from a supermassive black hole at the centre of a galaxy hundreds of millions of light-years away. It released five times more energy than the previous record holder.
Publ.Date : Thu, 27 Feb 2020 11:44:59 EST

Earth formed much faster than previously thought, new study shows
By measuring iron isotopes, researchers have shown that our planet originally formed much faster than previously thought. This finding provides new insights on both planetary formation and the likelihood of water and life elsewhere in the universe.
Publ.Date : Thu, 20 Feb 2020 13:05:09 EST

Simulating a universe in which Newton's laws are only partially valid
For the first time, researchers have simulated the formation of galaxies in a universe without dark matter. To replicate this process on the computer, they have instead modified Newton's laws of gravity. The galaxies that were created in the computer calculations are similar to those we actually see today. According to the scientists, their assumptions could solve many mysteries of modern cosmology.
Publ.Date : Fri, 07 Feb 2020 12:44:54 EST

Astronomers discover unusual monster galaxy in the very early universe
Astronomers have found an unusual monster galaxy that existed about 12 billion years ago, when the universe was only 1.8 billion years old. Dubbed XMM-2599, the galaxy formed stars at a high rate and then died.
Publ.Date : Wed, 05 Feb 2020 11:05:41 EST

Showing how the tiniest particles in our universe saved us from complete annihilation
Gravitational waves could contain evidence to prove that neutrino particles reshuffled matter and anti-matter, explains a new study.
Publ.Date : Mon, 03 Feb 2020 11:43:49 EST

Exploring strangeness and the primordial Universe
Within quark-gluon plasma, strange quarks are readily produced through collisions between gluons.
Publ.Date : Fri, 31 Jan 2020 11:47:37 EST

New insights about the brightest explosions in the Universe
Researchers have, after ten years, found an explanation to the peculiar emission lines seen in one of the brightest supernovae ever observed -- SN 2006gy. At the same time they found an explanation for how the supernova arose.
Publ.Date : Thu, 23 Jan 2020 15:25:57 EST

Astronomers detect large amounts of oxygen in ancient star's atmosphere
Astronomers have detected large amounts of oxygen in the atmosphere of one of the oldest and most elementally depleted stars known. This new finding provides an important clue on how oxygen and other important elements were produced in the first generations of stars in the universe.
Publ.Date : Thu, 23 Jan 2020 15:25:40 EST