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.
|Astronomers find a galaxy unchanged since the early universe|
Researchers confirm the first detection of a relic galaxy with the Hubble Space Telescope.
Publ.Date : Thu, 07 Jun 2018 10:10:07 EDT
Discovery of clusters of galaxies in the early universe
Until now astronomers thought that these phenomena occurred 3,000 million years after the Big Bang, but this new result shows that they were already happening when the Universe was 1,500 million years old.
Publ.Date : Thu, 07 Jun 2018 10:09:59 EDT
Dark inflation opens up a gravitational window onto the first moments after the Big Bang
Dark matter and dark energy may have driven inflation, the exponential expansion of the Universe moments after the Big Bang. A new cosmological model proposed by physicists, which takes dark inflation into account, is the first to outline a precise chronology of the main events during the early history of our Universe. The model makes a spectacular prediction: that it should be possible to detect gravitational waves that were formed just fractions of a second after the creation of spacetime.
Publ.Date : Thu, 07 Jun 2018 10:09:20 EDT
How do you weigh a galaxy? Especially the one you're in?
Pinning down the mass of a galaxy may seem like an esoteric undertaking, but scientists think it holds the key to unraveling the nature of the elusive, yet-to-be-seen dark matter, and the fabric of our cosmos. A new technique promises more reliable estimates of the masses of galaxies.
Publ.Date : Wed, 06 Jun 2018 17:38:03 EDT
Data discrepancies may affect understanding of the universe
One of the unsolved mysteries in modern science is why the expansion of the universe appears to be accelerating. As astrophysicists look for answers in the mountains of data gathered from astronomical observations, they are finding that inconsistencies in that data might ultimately lead to the truth.
Publ.Date : Tue, 05 Jun 2018 17:24:55 EDT
Alien apocalypse: Can any civilization make it through climate change?
Does the universe contain planets with truly sustainable civilizations? Or does every civilization that may have arisen in the cosmos last only a few centuries before it falls to the climate change it triggers? Astrophysicists have developed a mathematical model to illustrate how a technologically advanced population and its planet might develop together, putting climate change in a cosmic context.
Publ.Date : Mon, 04 Jun 2018 17:26:52 EDT
ALMA and VLT find too many massive stars in starburst galaxies, near and far
Astronomers using ALMA and the VLT have discovered that both starburst galaxies in the early Universe and a star-forming region in a nearby galaxy contain a much higher proportion of massive stars than is found in more peaceful galaxies. These findings challenge current ideas about how galaxies evolved, changing our understanding of cosmic star-formation history and the build up of chemical elements.
Publ.Date : Mon, 04 Jun 2018 11:25:50 EDT
Globular clusters 4 billion years younger than previously thought
Globular clusters could be up to 4 billion years younger than previously thought, new research has found.
Publ.Date : Mon, 04 Jun 2018 11:24:38 EDT
Astronomers release most complete ultraviolet-light survey of nearby galaxies
Capitalizing on the unparalleled sharpness and spectral range of NASA's Hubble Space Telescope, an international team of astronomers is releasing the most comprehensive, high-resolution ultraviolet-light survey of nearby star-forming galaxies.
Publ.Date : Thu, 17 May 2018 14:25:32 EDT
Evidence for stars forming just 250 million years after Big Bang
Astronomers have used observations from the Atacama Large Millimeter/submillimeter Array (ALMA) and ESO's Very Large Telescope (VLT) to determine that star formation in the very distant galaxy MACS1149-JD1 started at an unexpectedly early stage, only 250 million years after the Big Bang. This discovery also represents the most distant oxygen ever detected in the universe and the most distant galaxy ever observed by ALMA or the VLT.
Publ.Date : Wed, 16 May 2018 13:12:14 EDT
Astronomers find fastest-growing black hole known in space
Astronomers have found the fastest-growing black hole known in the universe, describing it as a monster that devours a mass equivalent to our sun every two days.
Publ.Date : Wed, 16 May 2018 10:52:18 EDT
Could a multiverse be hospitable to life?
A multiverse -- where our universe is only one of many -- might not be as inhospitable to life as previously thought, according to new research.
Publ.Date : Mon, 14 May 2018 08:39:08 EDT
Taming the multiverse: Stephen Hawking's final theory about the big bang
Professor Stephen Hawking's final theory on the origin of the universe has just been published.
Publ.Date : Wed, 02 May 2018 09:46:41 EDT
Doubt cast on new theories of star formation
The birth of stars from dense clouds of gas and dust may be happening in a completely unexpected way in our own galaxy and beyond.
Publ.Date : Mon, 30 Apr 2018 13:19:02 EDT
Assembly of massive galaxy cluster witnessed for the first time
For the first time, astronomers have witnessed the birth of a colossal cluster of galaxies. Their observations reveal at least 14 galaxies packed into an area only four times the diameter of the Milky Way's galactic disk. Computer simulations of the galaxies predict that over time the cluster will assemble into one of the most massive structures in the modern universe.
Publ.Date : Wed, 25 Apr 2018 13:18:48 EDT
To see the first-born stars of the universe
ASU-led team aims to use new NASA space telescope to capture light from the first stars to be born in the universe.
Publ.Date : Wed, 25 Apr 2018 12:02:56 EDT
Milky Way's supermassive black hole may have 'unseen' siblings
Astronomers predict that galaxies with a mass similar to the Milky Way should host several supermassive black holes.
Publ.Date : Tue, 24 Apr 2018 13:36:01 EDT
Uncovering the secret law of the evolution of galaxy clusters
Using observational data from the Hubble Space Telescope and the Subaru Telescope, the size and mass of galaxy clusters have precisely been measured. The research team analyzed those data and found a simple law that regulates the growth of the clusters. They also showed that the clusters are still young and growing. The newfound law will serve as a tool to clarify the evolutionary history of clusters and the universe.
Publ.Date : Tue, 24 Apr 2018 09:37:11 EDT
Atoms may hum a tune from grand cosmic symphony
Researchers playing with a cloud of ultracold atoms uncovered behavior that bears a striking resemblance to the universe in microcosm. Their work forges new connections between atomic physics and the sudden expansion of the early universe.
Publ.Date : Thu, 19 Apr 2018 14:15:33 EDT
Vast stellar nursery of Lagoon Nebula
This colorful cloud of glowing interstellar gas is just a tiny part of the Lagoon Nebula, a vast stellar nursery. This nebula is a region full of intense activity, with fierce winds from hot stars, swirling chimneys of gas, and energetic star formation all embedded within a hazy labyrinth of gas and dust.
Publ.Date : Thu, 19 Apr 2018 13:09:30 EDT