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.

 

Gravitational waves will settle cosmic conundrum
Measurements of gravitational waves from approximately 50 binary neutron stars over the next decade will definitively resolve an intense debate about how quickly our universe is expanding, according to new findings.
Publ.Date : Thu, 14 Feb 2019 11:55:49 EST

Spacecraft measurements reveal mechanism of solar wind heating
A new study describes the first direct measurement of how energy is transferred from the chaotic electromagnetic fields in space to the particles that make up the solar wind, leading to the heating of interplanetary space.
Publ.Date : Thu, 14 Feb 2019 08:46:58 EST

Scientists observe a new form of strange matter
In a discovery that could provide new insights into the origin of mass in the universe following the Big Bang, scientists have used experiments with kaons and helium-3 to experimentally demonstrate, for the first time, the existence of an exotic nucleus containing two protons and a bound kaon.
Publ.Date : Mon, 28 Jan 2019 09:14:40 EST

How to escape a black hole: Simulations provide new clues about powerful plasma jets
New simulations have combined decades-old theories to provide new insight about the driving mechanisms in plasma jets that allows them to steal energy from black holes' powerful gravitational fields and propel it far from their gaping mouths.
Publ.Date : Thu, 24 Jan 2019 13:38:32 EST

Making the Hubble's deepest images even deeper
It has taken researchers almost three years to produce the deepest image of the Universe ever taken from space, by recovering a large quantity of 'lost' light around the largest galaxies in the Hubble Ultra-Deep Field.
Publ.Date : Thu, 24 Jan 2019 08:48:12 EST

Birth of massive black holes in the early universe
The light released from around the first massive black holes in the universe is so intense that it is able to reach telescopes across the entire expanse of the universe. Incredibly, the light from the most distant black holes (or quasars) has been traveling to us for more than 13 billion light years. However, we do not know how these monster black holes formed.
Publ.Date : Wed, 23 Jan 2019 13:17:30 EST

Seeing double could help resolve dispute about how fast the universe is expanding
How fast the universe is expanding has been puzzling astronomers for almost a century. Different studies keep coming up with different answers -- which has some researchers wondering if they've overlooked a key mechanism in the machinery that drives the cosmos. Now, by pioneering a new way to measure how quickly the cosmos is expanding, astronomers have taken a step toward resolving the debate.
Publ.Date : Tue, 22 Jan 2019 17:13:25 EST

Milky Way's neighbors pick up the pace
After slowly forming stars for the first few billion years of their lives, the Magellanic Clouds, near neighbors of our own Milky Way galaxy, have upped their game and are now forming new stars at a fast clip. This new insight into the history of the Clouds comes from the first detailed chemical maps made of galaxies beyond the Milky Way.
Publ.Date : Tue, 22 Jan 2019 11:50:37 EST

New quantum structures in super-chilled helium may mirror early days of universe
Experimental proof of a decades-old prediction opens a pathway to recreate possible conditions of the early universe here on earth.
Publ.Date : Wed, 16 Jan 2019 09:06:53 EST

Big Bang query: Mapping how a mysterious liquid became all matter
New findings test the limits of quark-gluon plasma (QGP), the mysterious liquid thought to have existed in the micro-seconds after the Big Bang.
Publ.Date : Mon, 14 Jan 2019 08:28:41 EST

Cosmic telescope zooms in on the beginning of time
Observations from Gemini Observatory identify a key fingerprint of an extremely distant quasar, allowing astronomers to sample light emitted from the dawn of time. Astronomers happened upon this deep glimpse into space and time thanks to a foreground galaxy acting as a gravitational lens, which magnified the ancient light. The Gemini observations provide critical pieces of the puzzle in confirming this object as the brightest appearing quasar so early in the history of the universe.
Publ.Date : Thu, 10 Jan 2019 08:27:07 EST

A survey machine and a data trove: Dark Energy Survey's rich legacy
On the night of Jan. 9, 2019, the V. M. Blanco 4-meter telescope at the National Science Foundation's (NSF) Cerro Tololo Inter-American Observatory (CTIO), high in the mountains of Chile, will close the camera's shutter on the final image from the Dark Energy Survey (DES) -- a survey that has mapped 5,000 square degrees of the heavens, almost one-quarter of the southern sky.
Publ.Date : Tue, 08 Jan 2019 14:13:42 EST

Our universe: An expanding bubble in an extra dimension
Researchers have devised a new model for the universe -- one that may solve the enigma of dark energy. Their new article proposes a new structural concept, including dark energy, for a universe that rides on an expanding bubble in an additional dimension.
Publ.Date : Fri, 28 Dec 2018 16:48:24 EST

Faint starlight in Hubble images reveals distribution of dark matter
Astronomers have employed a revolutionary method to detect dark matter in galaxy clusters. The method allows astronomers to 'see' the distribution of dark matter more accurately than any other method used to date and it could possibly be used to explore the ultimate nature of dark matter.
Publ.Date : Thu, 20 Dec 2018 11:18:13 EST

Beyond the black hole singularity
Our first glimpses into the physics that exist near the center of a black hole are being made possible using 'loop quantum gravity'-- a theory that uses quantum mechanics to extend gravitational physics beyond Einstein's theory of general relativity.
Publ.Date : Thu, 20 Dec 2018 11:18:04 EST

Fossil from the Big Bang discovered with W. M. Keck Observatory
A relic cloud of gas, orphaned after the Big Bang, has been discovered in the distant universe by astronomers using the world's most powerful optical telescope, the W. M. Keck Observatory on Maunakea, Hawaii.
Publ.Date : Tue, 18 Dec 2018 09:30:17 EST

Narrowing the universe in the search for life
In the search for life on other planets, scientists traditionally have looked for a world with water. But a geophysicist now wonders if we should look to rocks instead.
Publ.Date : Mon, 17 Dec 2018 10:18:09 EST

Tangled magnetic fields power cosmic particle accelerators
Magnetic field lines tangled like spaghetti in a bowl might be behind the most powerful particle accelerators in the universe. That's the result of a new computational study that simulated particle emissions from distant active galaxies.
Publ.Date : Thu, 13 Dec 2018 13:12:42 EST

Did supernovae kill off large ocean animals at dawn of Pleistocene?
The effects of a supernova -- and possibly more than one -- on large ocean life like school-bus-sized Megalodon 2.6 million years ago are detailed in a new article.
Publ.Date : Tue, 11 Dec 2018 11:29:41 EST

Calibrating cosmic mile markers
New work provides the best-yet calibrations for using type Ia supernovae to measure cosmic distances, which has implications for our understanding of how fast the universe is expanding and the role dark energy may play in driving this process.
Publ.Date : Tue, 11 Dec 2018 10:31:16 EST