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Preview: Brightsurf Science News :: Milky Way News

Milky Way Current Events and Milky Way News from Brightsurf

Milky Way Current Events and Milky Way News Events, Discoveries and Articles from Brightsurf

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Astronomers reveal nearby stars that are among the oldest in our galaxy

Mon, 20 Nov 17 00:14:20 -0800

Astronomers have discovered some of the oldest stars in our Milky Way galaxy by determining their locations and velocities, according to a study led by scientists at Georgia State University.

Star kills its 'congenial' to form together a dwarf-binary system, astronomers confirm

Thu, 09 Nov 17 00:00:00 -0800

Group of scientists in Brazilian universities and research institutions observe star demoted to white dwarf status because of companion. Star was pronounced dead once its helium core ended up exposed after it had a great part of its mass ejected by means of the gravitational interaction between both objects.

Forest of molecular signals in star forming galaxy

Mon, 06 Nov 17 00:00:40 -0800

Astronomers found a rich molecular reservoir in the heart of an active star-forming galaxy with the Atacama Large Millimeter/submillimeter Array (ALMA). Among eight clouds identified at the center of the galaxy NGC 253, one exhibits very complex chemical composition, while in the other clouds many signals are missing. This chemical richness and diversity shed light on the nature of the baby boom galaxy.

Monster colliding black holes might lurk on the edge of spiral galaxies

Mon, 30 Oct 17 00:05:30 -0700

The outskirts of spiral galaxies like our own could be crowded with colliding black holes of massive proportions and a prime location for scientists hunting the sources of gravitational waves, said Rochester Institute of Technology researchers. Their study identifies an overlooked region potentially rife with orbiting black holes. Identifying host galaxies of merging massive black holes could help explain how orbiting pairs of black holes form.

Students in right place, right time witness first-ever detected neutron star collision

Mon, 16 Oct 17 00:12:10 -0700

New research published in Science details perhaps one of the biggest discoveries so far in the field of astrophysics: the merger of two neutron stars. Two graduate students and two professors at the University of Notre Dame contributed to studies published on the collision.

Science: Ambassadors from distant galaxies

Fri, 13 Oct 17 00:06:20 -0700

Cosmic rays of very high energy have their origin outside of our own galaxy, the Milky Way. This is suggested by a study of the angles of incidence of more than 30,000 particles at the Pierre Auger Observatory in Argentina, which is now reported in the Science journal. This finding of the KIT-managed largest experiment measuring cosmic rays worldwide is another important step on the way towards answering fundamental questions relating to the origin of the universe.

VLBA measurement promises complete picture of Milky Way

Thu, 12 Oct 17 00:15:30 -0700

Distance measured out to the far side of our Milky Way means that radio astronomers now can work on producing an accurate map of the full extent of our galaxy's structure for the first time.

'Seeing' the other side of our galaxy

Thu, 12 Oct 17 00:15:00 -0700

Astronomers have successfully traced a spiral arm on the far side of our Galaxy, an accomplishment that provides new insights into the structure of the Milky Way.

Scientists discover more about the ingredients for star formation

Mon, 09 Oct 17 00:08:30 -0700

In the local universe close to us about 70 percent of the hydrogen gas is found in individual atoms, while the rest is in molecules. Astronomers had expected that as they looked back in time, younger galaxies would contain more and more molecular hydrogen until it dominated the gas in the galaxy. Instead, they found that atomic hydrogen makes up the majority of gas in younger galaxies too.

Observations of red aurora over 1770 Kyoto help diagnose extreme magnetic storm

Tue, 03 Oct 17 00:00:10 -0700

Researchers used historic accounts of a rare red aurora over Kyoto, Japan, in the 18th century to support calculations of the strength of the associated magnetic storm. The September 1770 storm could be 3-10% stronger than the September 1859 storm, the greatest storm in the past 200 years. The research provides insights that could assist preparation for an unlikely, but possible, future intense magnetic storm.

Bursting with starbirth

Thu, 28 Sep 17 00:02:30 -0700

This oddly shaped galactic spectacle is bursting with brand new stars. The pink fireworks in this image taken with the NASA/ESA Hubble Space Telescope are regions of intense star formation, triggered by a cosmic-scale collision. The huge galaxy in this image, NGC 4490, has a smaller galaxy in its gravitational grip and is feeling the strain.

The Cherenkov Telescope Array releases its updated science case

Wed, 27 Sep 17 00:02:30 -0700

This release of the updated science case for the Cherenkov Telescope Array (CTA) details how it will be the major global observatory for very high energy gamma-ray astronomy over the next decade and beyond. The scientific potential of CTA is extremely broad: from understanding the role of relativistic cosmic particles to the search for dark matter. Covering a huge range in photon energy from 20 GeV to 300 TeV, CTA will improve on all aspects of performance with respect to current instruments.

Oxygen-deficient dwarf galaxy hints at makings of early universe

Mon, 25 Sep 17 00:07:20 -0700

Astronomers have long searched for understanding of how the universe assembled from simplicity to complexity. A newly studied tiny galaxy is providing clues.

Observatory detects extragalactic cosmic rays hitting the Earth

Fri, 22 Sep 17 00:03:10 -0700

Fifty years ago, scientists discovered that the Earth is occasionally hit by cosmic rays of enormous energies. Since then, they have argued about the source of those ultra-high energy cosmic rays -- whether they came from our galaxy or outside the Milky Way. The answer is a galaxy or galaxies far, far away, according to a report published Sept. 22 in Science by the Pierre Auger Collaboration.

Study confirms cosmic rays have extragalactic origins

Thu, 21 Sep 17 00:12:20 -0700

International collaboration by scientists with the Pierre Auger Observatory confirms that most of the highest energy cosmic rays that reach the Earth come from outside the Milky Way galaxy.

Ultra-high-energy cosmic rays come from galaxies far, far away

Thu, 21 Sep 17 00:11:50 -0700

A new study reveals that cosmic rays with the highest energies that make their way to Earth originated from outside our Milky Way galaxy.

Is the Milky Way an 'outlier' galaxy? Studying its 'siblings' for clues

Wed, 20 Sep 17 00:03:10 -0700

The most-studied galaxy in the universe -- the Milky Way -- might not be as 'typical' as previously thought, according to a new study. Early results from the Satellites Around Galactic Analogs (SAGA) Survey indicate that the Milky Way's satellites are much more tranquil than other systems of comparable luminosity and environment. Many satellites of those 'sibling' galaxies are actively pumping out new stars, but the Milky Way's satellites are mostly inert, the researchers found.

Star formation influenced by local environmental conditions

Fri, 15 Sep 17 00:10:20 -0700

Three scientists at Niels Bohr Institute (NBI), University of Copenhagen, have carried out extensive computer simulations related to star formation. They conclude that the present idealized models are lacking when it comes to describing details in the star formation process. 'Hopefully our results can also help shed more light on planet formation', says Michael Küffmeier, astrophysicist and head of the research team.

Accretion-powered pulsar reveals unique timing glitch

Wed, 06 Sep 17 00:07:10 -0700

The discovery of the largest timing irregularity yet observed in a pulsar is the first confirmation that pulsars in binary systems exhibit the strange phenomenon known as a 'glitch.' The study is published in the journal Monthly Notices of the Royal Astronomical Society.

UCLA physicists propose new theories of black holes from the very early universe

Fri, 01 Sep 17 00:05:50 -0700

'Primordial black holes,' believed to have formed shortly after the Big Bang, might explain how heavy elements such as gold, platinum and uranium came to be, UCLA physicists report.

Magnetic fields in distant galaxy are new piece of cosmic puzzle

Wed, 30 Aug 17 00:16:00 -0700

Astronomers have measured magnetic fields in a galaxy 4.6 billion light-years away -- a big clue to understanding how magnetic fields formed and evolved over cosmic time.

Record-breaking galaxy 5 billion light-years away shows we live in a magnetic universe

Mon, 28 Aug 17 00:07:30 -0700

A team of astronomers has observed the magnetic field of a galaxy five billion light-years from Earth. The galaxy is the most distant in which a coherent magnetic field has been observed and provides important insight into how magnetism in the universe formed and evolved.

OU astrophysicist predicts detached, eclipsing white dwarfs to merge into exotic star

Fri, 18 Aug 17 00:09:10 -0700

A University of Oklahoma astrophysicist, Mukremin Kilic, and his team have discovered two detached, eclipsing double white dwarf binaries with orbital periods of 40 and 46 minutes, respectively. White dwarfs are the remnants of Sun-like stars, many of which are found in pairs, or binaries.

Astrophysicists explain the mysterious behavior of cosmic rays

Thu, 17 Aug 17 00:15:10 -0700

The model focuses mainly on the nature of Fermi bubbles and explains the spectral distribution of the observed cosmic rays flux. It can be said that the processes they described are capable of re-accelerating galactic cosmic rays generated in supernova explosions. Unlike electrons, protons have a significantly greater lifetime, so when accelerated in Fermi bubbles, they can fill up the volume of the Galaxy and be observed near the Earth.

International team of researchers redefines cosmic velocity web

Mon, 14 Aug 17 00:14:40 -0700

The cosmic web -- the distribution of matter on the largest scales in the universe -- has usually been defined through the distribution of galaxies. Now, a new study by a team of astronomers from France, Israel and Hawaii demonstrates a novel approach. Instead of using galaxy positions, they mapped the motions of thousands of galaxies.

Galactic winds push researchers to probe galaxies at unprecedented scale

Thu, 10 Aug 17 00:15:50 -0700

After using the Titan supercomputer at Oak Ridge National Laboratory to rule out a potential mechanism for galactic wind, UC Santa Cruz astrophysicist Brant Robertson and University of Arizona graduate student Evan Schneider, now a Hubble Fellow at Princeton University, are aiming to generate nearly a trillion-cell simulation of an entire galaxy, which would be the largest simulation of a galaxy ever.

Primordial black holes may have helped to forge heavy elements

Fri, 04 Aug 17 00:09:00 -0700

Astronomers like to say we are the byproducts of stars, stellar furnaces that long ago fused hydrogen and helium into the elements needed for life through the process of stellar nucleosynthesis.

Astronomers discover 'heavy metal' supernova rocking out

Mon, 31 Jul 17 00:01:20 -0700

A team of astronomers led by the Harvard-Smithsonian Center for Astrophysics has discovered that an extraordinarily bright supernova occurred in a surprising location. This 'heavy metal' supernova discovery challenges current ideas of how and where such super-charged supernovas occur. In the past decade, astronomers have discovered about 50 supernovas, out of the thousands known, that are particularly powerful. Following the recent discovery of one of these, the researchers have uncovered vital clues about where some of these extraordinary objects come from.

Astrophysicists map out the light energy contained within the Milky Way

Thu, 27 Jul 17 00:05:00 -0700

For the first time, a team of scientists have calculated the distribution of all light energy contained within the Milky Way, which will provide new insight into the make-up of our galaxy and how stars in spiral galaxies such as ours form. The study is published in the journal Monthly Notices of the Royal Astronomical Society.

Milky Way's origins are not what they seem

Wed, 26 Jul 17 00:01:40 -0700

In a first-of-its-kind analysis, Northwestern University astrophysicists have discovered that up to half of the matter in our Milky Way galaxy may come from distant galaxies. As a result, each one of us may be made in part from extragalactic matter. Using supercomputer simulations, the researchers found an unexpected mode for how galaxies acquired matter: intergalactic transfer. Supernova explosions eject copious amounts of gas from galaxies, causing atoms to be transported from one galaxy to another via powerful galactic winds.

Dark matter is likely 'cold,' not 'fuzzy,' scientists report after new simulations

Mon, 24 Jul 17 00:06:30 -0700

Scientists have used data from the intergalactic medium -- the vast, largely empty space between galaxies -- to narrow down what dark matter could be.

Infected insects cause a stink

Mon, 24 Jul 17 00:07:20 -0700

In a paper published today in Scientific Reports, a team led by Adler Dillman, assistant professor of parasitology in UCR's College of Natural and Agricultural Sciences, has shown how nematodes use smell to seek out uninfected insects, which they then enter and kill. The findings support the group's long-term goal of improving how gardeners and the agricultural industry use nematodes in biological pest management.

Superluminous supernova marks the death of a star at cosmic high noon

Fri, 21 Jul 17 00:06:30 -0700

The death of a massive star in a distant galaxy 10 billion years ago created a rare superluminous supernova, one of the most distant ever discovered. The brilliant explosion, more than three times as bright as the 100 billion stars of our Milky Way galaxy combined, occurred about 3.5 billion years after the big bang at a period known as 'cosmic high noon,' when the rate of star formation in the universe reached its peak.

Scientists discovered one of the brightest galaxies known

Fri, 14 Jul 17 00:14:30 -0700

Thanks to an amplified image produced by a gravitational lens, and the Gran Telescopio CANARIAS a team of scientists from the Polytechnic University of Cartagena and the Instituto de Astrofísica de Canarias have discovered one of the brightest galaxies known from the epoch when the universe had 20 percent of its present age.

Hubble spots a barred lynx spiral
Discovered by British astronomer William