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Preview: Brightsurf Science News :: Star Cluster News

Star Cluster Current Events and Star Cluster News from Brightsurf

Star Cluster Current Events and Star Cluster News Events, Discoveries and Articles from Brightsurf

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New research collaboration with UTSA professor challenges existing models of black holes

Fri, 19 Jan 18 00:14:00 -0800

Chris Packham, associate professor of physics and astronomy at The University of Texas at San Antonio (UTSA), has collaborated on a new study that expands the scientific community's understanding of black holes in our galaxy and the magnetic fields that surround them.

North, east, south, west: The many faces of Abell 1758

Thu, 18 Jan 18 00:01:50 -0800

Resembling a swarm of flickering fireflies, this beautiful galaxy cluster glows intensely in the dark cosmos, accompanied by the myriad bright lights of foreground stars and swirling spiral galaxies. A1758N is a sub-cluster of Abell 1758, a massive cluster containing hundreds of galaxies. Although it may appear serene in this NASA/ESA Hubble Space Telescope image, the sub-cluster actually comprises two even smaller structures currently in the turbulent process of merging.

Neutron-star merger yields new puzzle for astrophysicists

Thu, 18 Jan 18 00:05:20 -0800

The afterglow from the distant neutron-star merger detected last August has continued to brighten - much to the surprise of astrophysicists studying the aftermath of the massive collision that took place about 138 million light years away and sent gravitational waves rippling through the universe. New observations from NASA's orbiting Chandra X-ray Observatory, reported in Astrophysical Journal Letters, indicate that the gamma ray burst unleashed by the collision is more complex than scientists initially imagined.

NASA team studies middle-aged sun by tracking motion of Mercury

Thu, 18 Jan 18 00:06:00 -0800

Like the waistband of a couch potato in midlife, the orbits of planets in our solar system are expanding. It happens because the Sun's gravitational grip gradually weakens as our star ages and loses mass. Now, a team of NASA and MIT scientists has indirectly measured this mass loss and other solar parameters by looking at changes in Mercury's orbit.

Launch of 'DeWorm3' collection

Thu, 18 Jan 18 00:10:30 -0800

PLOS Neglected Tropical Diseases is happy to announce the publication of a new collection, 'DeWorm3' on Jan. 18, 2018.

Odd behavior of star reveals lonely black hole hiding in giant star cluster

Wed, 17 Jan 18 00:09:20 -0800

Astronomers using ESO's MUSE instrument on the Very Large Telescope in Chile have discovered a star in the cluster NGC 3201 that is behaving very strangely. It appears to be orbiting an invisible black hole with about four times the mass of the sun -- the first such inactive stellar-mass black hole found in a globular cluster and the first found by directly detecting its gravitational pull.

Study says some nursing homes gaming the system to improve their Medicare star ratings

Wed, 17 Jan 18 00:09:30 -0800

A new study of nursing homes in California, the nation's largest system, by faculty at Florida Atlantic University and the University of Connecticut, found that some nursing homes inflate their self-assessment reporting to improve their score in the Five-Star Quality Rating System employed by Medicare to help consumers.

Modular gene enhancer promotes leukemia and regulates effectiveness of chemotherapy

Wed, 17 Jan 18 00:01:50 -0800

Every day, billions of new blood cells are generated in the bone marrow. The gene Myc is known to play an important role in this process, and is also known to play a role in cancer. Scientists from the German Cancer Research Center (DKFZ) and the HI-STEM have now found that just how big a role Myc plays is determined by a distant section of DNA that contains a cluster of gene enhancers.

How massive can neutron stars be?

Wed, 17 Jan 18 00:05:10 -0800

Since their discovery in the 1960s, scientists have sought to answer an important question: How massive can neutron stars actually become? By contrast to black holes, these stars cannot gain in mass arbitrarily; past a certain limit there is no physical force in nature that can counter their enormous gravitational force. For the first time, astrophysicists at Goethe University Frankfurt have succeeded in calculating a strict upper limit for the maximum mass of neutron stars.

Redshift space distortions measured by quasars in scientific first

Tue, 16 Jan 18 00:08:40 -0800

The eBOSS team released its latest results on Jan. 10, 2018: a measurement of redshift space distortions (RSD) with high significance has been successfully accomplished using observations of quasars distributed 6.8 to 10.5 billion light years away from Earth (with redshifts 0.8 to 2.2). This is the first probe of cosmic structure growth using quasars.

Hubble weighs in on mass of 3 million billion suns

Tue, 16 Jan 18 00:00:30 -0800

In 2014, astronomers using the NASA/ESA Hubble Space Telescope found that this enormous galaxy cluster contains the mass of a staggering three million billion suns. Known officially as ACT-CLJ0102-4915, it is the largest, hottest, and brightest X-ray galaxy cluster ever discovered in the distant universe.

Quantum leap: computational approach launches new paradigm in electronic structure theory

Fri, 12 Jan 18 00:08:20 -0800

A group of Michigan State University researchers specializing in quantum calculations has proposed a radically new computational approach to solving the complex many-particle Schrödinger equation, which holds the key to explaining the motion of electrons in atoms and molecules.

Correct warm-up reduces soccer injuries in children by half

Thu, 11 Jan 18 00:11:40 -0800

A warm-up program developed specially for children reduces soccer injuries by around 50 percent. Sports scientists from the University of Basel reported these findings in the academic journal Sports Medicine. A total of 243 teams comprising around 3,900 children from four European countries took part in the study.

GBT detection unlocks exploration of 'aromatic' interstellar chemistry

Thu, 11 Jan 18 00:14:10 -0800

Astronomers using the Green Bank Telescope have made the first definitive interstellar detection of benzonitrile, an intriguing organic molecule that helps to chemically link simple carbon-based molecules and truly massive ones known as polycyclic aromatic hydrocarbons. This discovery is a vital clue in a 30-year-old mystery: identifying the source of a faint infrared glow that permeates the Milky Way and other galaxies.

Hubble finds substellar objects in the Orion Nebula

Thu, 11 Jan 18 00:16:30 -0800

Astronomers using NASA's Hubble Space Telescope have uncovered the largest known population of brown dwarfs sprinkled among newborn stars in the Orion Nebula.

No planets needed: NASA study shows disk patterns can self-generate

Thu, 11 Jan 18 00:00:30 -0800

A new NASA study shows rings, arcs and spirals in disks around stars may not be caused by planets. They may self-generate.

SETI project homes in on strange 'fast radio bursts'

Wed, 10 Jan 18 00:11:30 -0800

Brief and powerful fast radio bursts could be signals from advanced civilizations, which is why Breakthrough Listen at UC Berkeley is monitoring many of the 30-some known FRBs, including FRB 121102, the only repeater. They and another team report that the bursts from FRB 121102 are 100 percent polarized, indicating that they come from a source embedded in a strong magnetic field, like that around a massive black hole at the center of a galaxy.

Fast radio bursts 'twists and shouts' help scientists determine source of cosmic blasts

Wed, 10 Jan 18 00:11:10 -0800

An international group of astronomers has found that the Cornell University-discovered fast radio burst FRB 121102 -- a brief, gigantic pulse of radio waves from 3 billion light years away -- passes through a veil of magnetized plasma. This causes the cosmic blasts to 'shout and twist,' which will help the scientists determine the source.

Fast radio burst source linked to 'extreme' environment

Wed, 10 Jan 18 00:11:00 -0800

A new study shows that the only known repeating fast radio burst source is in an 'extreme' environment which is among the most highly magnetized regions of space ever observed. Such an environment has only been seen around massive black holes, but could also plausibly be caused by a combination of other extreme astrophysical circumstances. The new measurements could offer a major clue to the FRB's cause.

ASU astronomers to build space telescope to explore nearby stars

Wed, 10 Jan 18 00:16:20 -0800

A new ASU-led mission will launch a small satellite telescope into space to study the environment in other solar systems around the Galaxy's most common type of star.

New drug capsule may allow weekly HIV treatment

Tue, 09 Jan 18 00:03:20 -0800

Researchers at MIT and Brigham and Women's Hospital have developed a capsule that can deliver a week's worth of HIV drugs in a single dose. This advance could make it much easier for patients to adhere to the strict schedule of dosing required for the drug cocktails used to fight the virus, the researchers say.

Planets around other stars are like peas in a pod

Tue, 09 Jan 18 00:08:00 -0800

A study of 909 planets and 355 stars carried out at the W.M. Keck Observatory reveals that, unlike our solar system, other planetary systems are distinguished by strict regularity.

Black hole research could aid understanding of how small galaxies evolve

Tue, 09 Jan 18 00:07:50 -0800

Scientists have solved a cosmic mystery by finding evidence that supermassive black holes prevent stars forming in some smaller galaxies.

Researchers use AI technology to chart immune cell receptor

Mon, 08 Jan 18 00:02:50 -0800

Johns Hopkins scientists have used a form of artificial intelligence to create a map that compares types of cellular receptors, the chemical

Landmark genetic study better predicts stomach cancer

Fri, 05 Jan 18 00:08:30 -0800

Although stomach cancer is treatable if detected early, diagnosis often occurs at an advanced stage, resulting in high mortality. A new study by researchers at the National University Health System and Duke-NUS Medical School has identified genetic patterns in intestinal metaplasia (a precondition for stomach cancer) which help predict the development of this life-threatening cancer. The discovery could enable targeted screening and earlier detection of stomach cancer, leading to better patient outcomes.

Special star is a Rosetta Stone for understanding the sun's variability and climate effect

Fri, 05 Jan 18 00:10:50 -0800

A large international team of scientists has found a star that can help shed light on the physics underlying the solar dynamo. The team has combined observations from the Kepler spacecraft with ground-based observations as far back as 1978, thereby reconstructing a 7.4-year cycle in this star. The star is almost identical to the Sun, except for the chemical composition. That makes it a Rosetta Stone for the study of stellar dynamos.

NASA's Webb Telescope to investigate mysterious brown dwarfs

Thu, 04 Jan 18 00:15:50 -0800

Twinkle, twinkle, little star, how I wonder what you are. Astronomers are hopeful that the powerful infrared capability of NASA's James Webb Space Telescope will resolve a puzzle as fundamental as stargazing itself -- what IS that dim light in the sky? Brown dwarfs muddy a clear distinction between stars and planets, throwing established understanding of those bodies, and theories of their formation, into question.

Big stars are more abundant than thought

Thu, 04 Jan 18 00:04:30 -0800

Observations of a nearby star-forming region reveal that large stars are more prevalent than models have predicted.

Weighing massive stars in nearby galaxy reveals excess of heavyweights

Thu, 04 Jan 18 00:03:30 -0800

An international team of astronomers has revealed an 'astonishing' overabundance of massive stars in a neighboring galaxy. The discovery, made in the gigantic star-forming region 30 Doradus in the Large Magellanic Cloud galaxy, has 'far-reaching' consequences for our understanding of how stars transformed the pristine Universe into the one we live in today.

Alien megastructure not the cause of dimming of the 'most mysterious star in the universe'

Wed, 03 Jan 18 00:14:20 -0800

Scientists are one step closer to solving the mystery behind the 'most mysterious star in the universe.'

New data debunks alien megastructure theory on the 'most mysterious star in the universe'
A team of more than 100 researchers, led by LSU Department of Physics