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.

 

Earth's heavy metals result of supernova explosion, research reveals
New research suggests most of Earth's heavy metals were spewed from a largely overlooked kind of star explosion called a collapsar.
Publ.Date : Thu, 13 Jun 2019 12:10:42 EDT

Technique pulls interstellar magnetic fields within easy reach
A new, more accessible and much cheaper approach to surveying the topology and strength of interstellar magnetic fields -- which weave through space in our galaxy and beyond, representing one of the most potent forces in nature -- has been developed.
Publ.Date : Mon, 10 Jun 2019 11:15:54 EDT

Fast and furious: Detection of powerful winds driven by a supermassive black hole
This is the first publication based entirely on data obtained with EMIR, an instrument developed in the Instituto de AstrofĂ­sica de Canarias (IAC) which analyses the infrared light gathered by the Gran Telescopio Canarias (GTC) from the Roque de los Muchachos Observatory (GarafĂ­a, La Palma).
Publ.Date : Fri, 07 Jun 2019 11:04:54 EDT

Subaru Telescope captures 1800 exploding stars
The Subaru Telescope has captured images of more than 1800 exploding stars in the Universe, some located 8 billion light years from Earth.
Publ.Date : Fri, 31 May 2019 08:54:08 EDT

Galaxies as 'cosmic cauldrons'
Star formation within interstellar clouds of gas and dust, so-called molecular clouds, proceeds very rapidly yet highly 'inefficiently'. Most of the gas is dispersed by stellar radiation, revealing galaxies to be highly dynamic systems, like 'cosmic cauldrons', consisting of components that constantly change their appearance. A team of scientists has reached these conclusions based on new observations of the NGC 300 spiral galaxy.
Publ.Date : Wed, 22 May 2019 15:31:36 EDT

Gas insulation could be protecting an ocean inside Pluto
Computer simulations provide compelling evidence that an insulating layer of gas hydrates could keep a subsurface ocean from freezing beneath Pluto's icy exterior.
Publ.Date : Mon, 20 May 2019 11:56:57 EDT

Training a neural network to study dark matter
A research group is using a deep learning method known as generative adversarial networks to enhance the use of gravitational lensing in the study of dark matter.
Publ.Date : Thu, 16 May 2019 14:52:06 EDT

Galaxy blazes with new stars born from close encounter
The irregular galaxy NGC 4485 shows all the signs of having been involved in a hit-and-run accident with a bypassing galaxy. Rather than destroying the galaxy, the chance encounter is spawning a new generation of stars, and presumably planets.
Publ.Date : Thu, 16 May 2019 11:46:16 EDT

Gravitational waves leave a detectable mark, physicists say
New research shows that gravitational waves leave behind plenty of 'memories' that could help detect them even after they've passed.
Publ.Date : Thu, 09 May 2019 17:33:43 EDT

New clues about how ancient galaxies lit up the Universe
NASA's Spitzer Space Telescope has revealed that some of the Universe's earliest galaxies were brighter than expected. The excess light is a by-product of the galaxies releasing incredibly high amounts of ionizing radiation. The finding offers clues to the cause of the Epoch of Reionization, a major cosmic event that transformed the universe from being mostly opaque to the brilliant starscape seen today.
Publ.Date : Thu, 09 May 2019 09:27:16 EDT

A new filter to better map the dark universe
To address messy measurements of the cosmic web that connects matter in the universe, researchers developed a way to improve the accuracy and clarity of these measurements based on the stretching of the universe's oldest light.
Publ.Date : Wed, 08 May 2019 14:24:56 EDT

Explosions of universe's first stars spewed powerful jets
Instead of ballooning into spheres, as once thought, early supernovae ejected jets that may have seeded new stars.
Publ.Date : Wed, 08 May 2019 13:46:00 EDT

Star formation burst in the Milky Way 2-3 billion years ago
Researchers have found, analyzing data from the Gaia satellite, that a strong star formation burst occurred in the Milky Way about 2 to 3 billion years ago. In this process, more than 50 percent of the stars that created the galactic disc may have been born.
Publ.Date : Wed, 08 May 2019 13:45:17 EDT

Could this rare supernova resolve a longstanding origin debate?
Detection of a supernova with an unusual chemical signature may hold the key to solving the longstanding mystery that is the source of these violent explosions. Observations taken by the Magellan telescopes at Carnegie's Las Campanas Observatory in Chile were crucial to detecting the emission of hydrogen that makes this supernova, called ASASSN-18tb, so distinctive.
Publ.Date : Tue, 07 May 2019 14:55:19 EDT

Blue supergiant stars open doors to concert in space
Blue supergiants are rock-and-roll: they live fast and die young. This makes them rare and difficult to study. Before space telescopes were invented, few blue supergiants had been observed, so our knowledge of these stars was limited. Astronomers have now studied the sounds originating inside these stars and discovered that almost all blue supergiants shimmer in brightness because of waves on their surface.
Publ.Date : Mon, 06 May 2019 12:41:21 EDT

Hubble spots a stunning spiral galaxy
NGC 2903 is located about 30 million light-years away in the constellation of Leo (the Lion), and was studied as part of a Hubble survey of the central regions of roughly 145 nearby disk galaxies.
Publ.Date : Fri, 03 May 2019 10:08:33 EDT

Hubble astronomers assemble wide view of the evolving universe
Astronomers have put together the largest and most comprehensive 'history book' of galaxies into one single image, using 16 years' worth of observations from NASA's Hubble Space Telescope.
Publ.Date : Thu, 02 May 2019 10:48:30 EDT

Two neutron stars collided near the solar system billions of years ago
Astrophysicists have found signs of a cosmic event that created elements that sent gold and silver to Earth.
Publ.Date : Thu, 02 May 2019 10:48:05 EDT

What a dying star's ashes tell us about the birth of our solar system
Researchers discovered a dust grain forged in a stellar explosion before our solar system was born. Atom-level analysis of the specimen reveals new insights about how stars end their lives and seed the universe with the building blocks of new stars and planets.
Publ.Date : Mon, 29 Apr 2019 11:18:32 EDT

Spinning black hole sprays light-speed plasma clouds into space
Astronomers have discovered rapidly swinging jets coming from a black hole almost 8,000 light-years from Earth. The research shows jets from V404 Cygni's black hole behaving in a way never seen before on such short timescales. The jets appear to be rapidly rotating with high-speed clouds of plasma -- potentially just minutes apart -- shooting out of the black hole in different directions.
Publ.Date : Mon, 29 Apr 2019 11:17:55 EDT