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.

 

Maximum mass of lightest neutrino revealed using astronomical big data
The mass of the lightest neutrino, an abundant 'ghost' particle found throughout the universe, has been calculated to be at least 6 million times lighter than the mass of an electron.
Publ.Date : Thu, 22 Aug 2019 11:34:07 EDT

Stardust in the Antarctic snow
The rare isotope iron-60 is created in massive stellar explosions. Only a very small amount of this isotope reaches the earth from distant stars. Now, a research team has discovered iron-60 in Antarctic snow for the first time. The scientists suggest that the iron isotope comes from the interstellar neighborhood.
Publ.Date : Tue, 20 Aug 2019 10:16:23 EDT

Black hole holograms
Researchers show how a holographic tabletop experiment can be used to simulate the physics of a black hole. This work may lead the way to a more complete theory of quantum gravity that harmonizes quantum mechanics and relativity.
Publ.Date : Tue, 20 Aug 2019 10:16:06 EDT

Lab-based dark energy experiment narrows search options for elusive force
An experiment to test a popular theory of dark energy has found no evidence of new forces, placing strong constraints on related theories.
Publ.Date : Mon, 19 Aug 2019 11:00:00 EDT

Fluorescent glow may reveal hidden life in the cosmos
Astronomers have uncovered a new way of searching for life in the cosmos. Harsh ultraviolet radiation flares from red suns, once thought to destroy surface life on planets, might help uncover hidden biospheres. Their radiation could trigger a protective glow from life on exoplanets called biofluorescence, according to new research.
Publ.Date : Tue, 13 Aug 2019 14:45:10 EDT

Finding a cosmic fog within shattered intergalactic pancakes
In a new study, researchers report on the most detailed simulation ever of a large patch of the intergalactic medium (IGM). For the first time, they were able to see how cold, dense gas clouds in the IGM organize themselves and react within much larger 'sheets' or 'pancakes' of matter in the vastness of space.
Publ.Date : Tue, 13 Aug 2019 11:34:52 EDT

Virtual 'universe machine' sheds light on galaxy evolution
By creating millions of virtual universes and comparing them to observations of actual galaxies, researchers have made discoveries that present a powerful new approach for studying galaxy formation.
Publ.Date : Fri, 09 Aug 2019 17:08:18 EDT

NASA's MMS finds first interplanetary shock
NASA's MMS mission just made the first high-resolution measurements of an interplanetary shockwave launched from the Sun.
Publ.Date : Thu, 08 Aug 2019 12:38:55 EDT

Where in the universe can you find a black hole nursery?
Gravitational wave researchers have developed a new model that could help astronomers track down the origin of heavy black hole systems in the Universe.
Publ.Date : Wed, 07 Aug 2019 19:08:24 EDT

Dark matter may be older than the Big Bang
Dark matter, which researchers believe make up about 80% of the universe's mass, is one of the most elusive mysteries in modern physics. What exactly it is and how it came to be is a mystery, but a new study now suggests that dark matter may have existed before the Big Bang.
Publ.Date : Wed, 07 Aug 2019 19:08:16 EDT

A long time ago, galaxies far, far away
Astronomers used the combined power of multiple astronomical observatories around the world and in space to discover a treasure-trove of previously unknown ancient massive galaxies. This is the first multiple discovery of its kind and such an abundance of this type of galaxy defies current models of the universe. These galaxies are also intimately connected with supermassive black holes and the distribution of dark matter.
Publ.Date : Wed, 07 Aug 2019 13:19:15 EDT

Astronomers reveal true colors of evolving galactic beasts
Astronomers have identified a rare moment in the life of some of the universe's most energetic objects.
Publ.Date : Wed, 07 Aug 2019 09:23:39 EDT

Measuring distances to remote celestial objects and analyzing cosmic clouds
Researchers jointly developed an originative radio receiver DESHIMA (Deep Spectroscopic High-redshift Mapper) and successfully obtained the first spectra and images with it. Combining the ability to detect a wide frequency range of cosmic radio waves and to disperse them into different frequencies, DESHIMA demonstrated its unique power to efficiently measure the distances to the remotest objects as well as to map the distributions of various molecules in nearby cosmic clouds.
Publ.Date : Mon, 05 Aug 2019 11:22:03 EDT

New telescope gives peek at the birth of the universe
The Square Kilometre Array (SKA) is set to become the largest radio telescope on Earth. Researchers have now examined the SKA-MPG telescope -- a prototype for the part of the SKA that receives signals in the mid-frequency range.
Publ.Date : Wed, 24 Jul 2019 10:40:33 EDT

Astronomers map vast void in our cosmic neighborhood
A new study reveals more of the vast cosmic structure surrounding our Milky Way galaxy.
Publ.Date : Mon, 22 Jul 2019 18:21:36 EDT

The early days of the Milky Way revealed
A study puts a sequence to the events which gave rise to our Galaxy.
Publ.Date : Mon, 22 Jul 2019 13:24:46 EDT

Supernova observation first of its kind using NASA satellite
Researchers have published findings about a supernova observed using TESS, adding new insights to long-held theories about the elements left behind after a white dwarf star explodes into a supernova.
Publ.Date : Tue, 16 Jul 2019 15:23:04 EDT

New Hubble constant measurement adds to mystery of universe's expansion rate
Astronomers have made a new measurement of how fast the universe is expanding, using an entirely different kind of star than previous endeavors. The revised measurement falls in the center of a hotly debated question in astrophysics that may lead to a new interpretation of the universe's fundamental properties.
Publ.Date : Tue, 16 Jul 2019 09:55:01 EDT

Pair of supermassive black holes discovered on a collision course
Astronomers have spotted a pair of supermassive black holes on a collision course in a galaxy 2.5 billion light-years away. Coincidentally, the pair will begin producing gravitational waves in roughly 2.5 billion years, the researchers estimate. The duo can be used to estimate how many supermassive black hole pairs are detectable in the nearby, present-day universe and when the historic first detection of the background 'hum' of their gravitational waves will be made.
Publ.Date : Wed, 10 Jul 2019 12:15:43 EDT

Holes in the Universe sharpen cosmic measurements
Regions of the Universe containing very few or no galaxies -- known as voids -- can help measure cosmic expansion with much greater precision than before, according to new research.
Publ.Date : Wed, 10 Jul 2019 12:15:42 EDT