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.
|Massive dead disk galaxy challenges theories of galaxy evolution|
By combining the power of a 'natural lens' in space with the capability of NASA's Hubble Space Telescope, astronomers made a surprising discovery -- the first example of a compact yet massive, fast-spinning, disk-shaped galaxy that stopped making stars only a few billion years after the big bang.
Publ.Date : Wed, 21 Jun 2017 14:51:50 EDT
A unique data center for cosmological simulations
Scientists have established 'Cosmowebportal', a unique data center for cosmological simulations. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.
Publ.Date : Tue, 20 Jun 2017 11:41:01 EDT
Galaxy alignments traced back 10 billion years
The most massive galaxies in the universe have been aligned with their surroundings for at least ten billion years. This discovery shows that galaxies, like people, are influenced by their environment from a young age.
Publ.Date : Tue, 13 Jun 2017 11:16:46 EDT
New strategy to search for ancient black holes
An interdisciplinary team of physicists and astronomers has devised a new strategy to search for 'primordial' black holes produced in the early universe. Such black holes are possibly responsible for the gravitational wave events observed by the Laser Interferometer Gravitational-Wave Observatory.
Publ.Date : Tue, 13 Jun 2017 10:29:33 EDT
The largest virtual Universe ever simulated
Researchers have simulated the formation of our entire Universe with a large supercomputer. A gigantic catalogue of about 25 billion virtual galaxies has been generated from 2 trillion digital particles. This catalogue is being used to calibrate the experiments on board the Euclid satellite, that will be launched in 2020 with the objective of investigating the nature of dark matter and dark energy.
Publ.Date : Fri, 09 Jun 2017 10:22:51 EDT
Cosmic inflation: Higgs says goodbye to his 'little brother'
In the first moments after the Big Bang, the Universe was able to expand even billions of billions of billions of times faster than today. Such rapid expansion should be due to a primordial force field, acting with a new particle: inflaton. From the latest analysis of the decay of mesons, carried out in the LHCb experiment by physicists from Cracow and Zurich, it appears, however, that the most probable light inflaton almost certainly does not exist.
Publ.Date : Thu, 08 Jun 2017 12:36:07 EDT
Celestial boondocks: Study supports the idea we live in a void
A new study not only firms up the idea that we exist in one of the holes of the Swiss cheese structure of the cosmos, but helps ease the apparent disagreement between different measurements of the Hubble Constant, the unit cosmologists use to describe the rate at which the universe is expanding today.
Publ.Date : Wed, 07 Jun 2017 14:29:30 EDT
Jackpot! Cosmic magnifying-glass effect captures universe's brightest galaxies
Boosted by natural magnifying lenses in space, NASA's Hubble Space Telescope has captured unique close-up views of the universe's brightest infrared galaxies, which are as much as 10,000 times more luminous than our Milky Way.
Publ.Date : Tue, 06 Jun 2017 15:57:22 EDT
ALMA returns to Boomerang Nebula
A companion star crashing into a red giant star may explain the chilling power to the Boomerang Nebula.
Publ.Date : Mon, 05 Jun 2017 11:09:24 EDT
Are dense star clusters the origin of the gravitational waves discovered by LIGO?
Much to their surprise, scientists are finding dozens of black holes deep within densely packed collections of stars called globular clusters.
Publ.Date : Fri, 02 Jun 2017 11:28:53 EDT
Knowledge by simplification: Scientists explore strong force
The “strong force” plays a crucial role for the existence of matter in the visible universe, scientists report. They used a method of theoretical simplification which might be applicable to heavier nuclei.
Publ.Date : Fri, 02 Jun 2017 08:50:05 EDT
Do stars fall quietly into black holes, or crash into something utterly unknown?
Astronomers have put a basic principle of black holes to the test, showing that matter completely vanishes when pulled in. Their results constitute another successful test for Albert Einstein's General Theory of Relativity.
Publ.Date : Tue, 30 May 2017 11:51:27 EDT
Just after the Big Bang: Galaxies created stars a hundred times faster now
A team of astronomers has discovered a new kind of galaxy which, although extremely old -- formed less than a billion years after the Big Bang -- creates stars more than a hundred times faster than our own Milky Way.
Publ.Date : Wed, 24 May 2017 13:11:49 EDT
Volunteers help find star that exploded 970 million years ago, predating the dinosaurs
Online volunteers have helped astronomers find a star that exploded 970 million years ago, predating the dinosaurs' time on Earth.
Publ.Date : Wed, 24 May 2017 10:15:22 EDT
Mapping super massive black holes in the distant universe
Astronomers have constructed the first map of the Universe based on the positions of supermassive black holes, which reveals the large-scale structure of the Universe.
Publ.Date : Fri, 19 May 2017 13:18:11 EDT
Solving one of nature's great puzzles: What drives the accelerating expansion of the universe?
Physicists may have solved one of nature's great puzzles: What causes the accelerating expansion of our universe?
Publ.Date : Mon, 15 May 2017 11:11:33 EDT
Origin of Milky Way's hypothetical dark matter signal may not be so dark
A mysterious gamma-ray glow at the center of the Milky Way is most likely caused by pulsars. The findings cast doubt on previous interpretations of the signal as a potential sign of dark matter.
Publ.Date : Tue, 02 May 2017 12:12:45 EDT
Intergalactic gas and ripples in the cosmic web
A team of astronomers has made the first measurements of small-scale ripples in primeval hydrogen gas using rare double quasars.
Publ.Date : Thu, 27 Apr 2017 14:17:11 EDT
New survey hints at exotic origin for the Cold Spot
A supervoid is unlikely to explain a 'Cold Spot' in the cosmic microwave background, according to the results of a new survey, leaving room for exotic explanations like a collision between universes.
Publ.Date : Tue, 25 Apr 2017 12:48:22 EDT
Hubble's cosmic bubbles
Hubble has revealed a few of the tenuous threads comprising Sh2-308, a faint and wispy shell of gas located 5,200 light-years away in Canis Major.
Publ.Date : Fri, 21 Apr 2017 11:32:54 EDT