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.

 

Stars born in winds from supermassive black holes
Observations using ESO's Very Large Telescope have revealed stars forming within powerful outflows of material blasted out from supermassive black holes at the cores of galaxies. These are the first confirmed observations of stars forming in this kind of extreme environment. The discovery has many consequences for understanding galaxy properties and evolution.
Publ.Date : Mon, 27 Mar 2017 11:46:04 EDT

Milky Way-like galaxies in early universe embedded in 'super halos'
Astronomers have directly observed a pair of Milky Way-like galaxies seen when the universe was only eight percent of its current age. These progenitors of today's giant spiral galaxies are surrounded by 'super halos' of hydrogen gas that extend many tens-of-thousands of light-years beyond their dusty, star-filled disks.
Publ.Date : Thu, 23 Mar 2017 14:14:05 EDT

Astronomers find unexpected, dust-obscured star formation in distant galaxy
Pushing the limits of the largest single-aperture millimeter telescope in the world, and coupling it with gravitational lensing, astronomers report that they have detected a surprising rate of star formation, four times higher than previously detected, in a dust-obscured galaxy behind a Frontier Fields cluster.
Publ.Date : Thu, 23 Mar 2017 12:54:53 EDT

New portal to unveil the dark sector of the universe
Once upon a time, the Universe was just a hot soup of particles. In those days, together with visible particles, other particles to us hidden or dark might have formed. Billions of years later scientists catalogued 17 types of visible particles, with the most recent one being the Higgs boson, creating the 'Standard Model'. However, they are still struggling to detect the hidden particles, the ones that constitute the dark sector of the Universe.
Publ.Date : Thu, 23 Mar 2017 08:39:04 EDT

Tracing aromatic molecules in the early Universe
A molecule found in car engine exhaust fumes that is thought to have contributed to the origin of life on Earth has made astronomers heavily underestimate the amount of stars that were forming in the early Universe, a study has found. That molecule is called polycyclic aromatic hydrocarbon. On Earth it is also found in coal and tar. In space, it is a component of dust.
Publ.Date : Wed, 22 Mar 2017 15:27:50 EDT

Universe's ultraviolet background could provide clues about missing galaxies
Astronomers have developed a way to detect the ultraviolet background of the universe, which could help explain why there are so few small galaxies in the cosmos.
Publ.Date : Wed, 22 Mar 2017 09:24:11 EDT

Looking for signs of the Big Bang in the desert
The silence of an immense desolate land in which to search for reverberations coming from the time at which everything began. The Simons Observatory will be built in the Chilean Atacama desert at an altitude of several thousand meters for the purposes of studying primordial gravitational waves which originated in the first instants of the Big Bang.
Publ.Date : Tue, 21 Mar 2017 12:39:10 EDT

Does the universe have a rest frame?
Physics is sometimes closer to philosophy when it comes to understanding the universe. Physicists are now attempting to elucidate whether the universe has a resting frame.
Publ.Date : Tue, 21 Mar 2017 12:25:45 EDT

Breaking the supermassive black hole speed limit
A new computer simulation helps explain the existence of puzzling supermassive black holes observed in the early universe. The simulation is based on a computer code used to understand the coupling of radiation and certain materials.
Publ.Date : Tue, 21 Mar 2017 11:03:07 EDT

Dark matter less influential in galaxies in early universe
New observations indicate that massive, star-forming galaxies during the peak epoch of galaxy formation, 10 billion years ago, were dominated by baryonic or 'normal' matter. This is in stark contrast to present-day galaxies, where the effects of mysterious dark matter seem to be much greater. This surprising result was obtained using ESO's Very Large Telescope and suggests that dark matter was less influential in the early universe than it is today.
Publ.Date : Wed, 15 Mar 2017 14:38:28 EDT

Radiation from nearby galaxies helped fuel first monster black holes
Researchers have shown how supermassive black holes may have formed in the early universe. They suggest that radiation from a neighboring galaxy could have shut down star-formation in a black-hole hosting galaxy, allowing the nascent black hole to rapidly put on weight.
Publ.Date : Mon, 13 Mar 2017 13:50:43 EDT

Looking for signs of the first stars
It may soon be possible to detect the universe's first stars by looking for the blue colour they emit on explosion.
Publ.Date : Mon, 13 Mar 2017 11:06:18 EDT

Why the discovery of a bevy of quasars will boost efforts to understand galaxies' origins
Late last year, an international team including researchers announced the discovery of more than 60 extremely distant quasars, nearly doubling the number known to science - and thus providing dozens of new opportunities to look deep into our universe's history.
Publ.Date : Fri, 10 Mar 2017 10:35:39 EST

First public data released by Hyper Suprime-Cam Subaru Strategic Program
The first massive data set of a 'cosmic census' has been released using the largest digital camera on the Subaru Telescope. With its beautiful images now available for the public at large, figuring out the fate of the Universe has come one step closer.
Publ.Date : Fri, 10 Mar 2017 08:42:34 EST

Hubble dates black hole's last big meal
NASA's Hubble Space Telescope has found that the black hole at the center of our Milky Way galaxy ate its last big meal about 6 million years ago, when it consumed a large clump of infalling gas. After the meal, the engorged black hole burped out a colossal bubble of gas weighing the equivalent of millions of suns, which now billows above and below our galaxy's center.
Publ.Date : Thu, 09 Mar 2017 13:27:48 EST

Studying magnetic space explosions with NASA missions
Magnetic explosions happen constantly all across the universe, and new results with NASA's ARTEMIS mission help explain how near-Earth explosions convert energy into heat and propel particles toward Earth.
Publ.Date : Thu, 09 Mar 2017 12:04:16 EST

Ancient stardust sheds light on the first stars
Astronomers have used ALMA to detect a huge mass of glowing stardust in a galaxy seen when the Universe was only four percent of its present age. This galaxy was observed shortly after its formation and is the most distant galaxy in which dust has been detected. This observation is also the most distant detection of oxygen in the Universe. These new results provide brand-new insights into the birth and explosive deaths of the very first stars.
Publ.Date : Wed, 08 Mar 2017 08:10:41 EST

Cosmic environments and their influence in star formation
Astronomers have performed an extensive study of the properties of galaxies within filaments formed at different times during the age of the universe.
Publ.Date : Mon, 06 Mar 2017 14:46:07 EST

Astronomy: Dark matter mapped
One of the highest-resolution maps of dark matter ever created has now been revealed, offering a detailed case for the existence of cold dark matter -- sluggish particles that comprise the bulk of matter in the universe.
Publ.Date : Wed, 01 Mar 2017 10:56:03 EST

Scars from the Big Bang: Galaxy cluster and cosmic background
The events surrounding the Big Bang were so cataclysmic that they left an indelible imprint on the fabric of the cosmos. We can detect these scars today by observing the oldest light in the universe.
Publ.Date : Wed, 01 Mar 2017 10:54:35 EST