Relativity
Sending Even a Tiny Message Through a Black Hole Would Make It Evaporate  LIVE SCIENCE · 13 hours
Sending a carrier pigeon across the cosmos would probably be a more reliable way to send a message. more
Quantum gravity's tangled time  SCIENCE DAILY · 1 day
The theories of quantum mechanics and gravity are notorious for being incompatible, despite the efforts of scores of physicists over the past fifty years. However, physicists have now combined the key elements of the two theories describing the flow of... more
Modal time theory: Understanding human existence through time travel and music  PHYS.ORG · 1 day
Time is a fundamental dimension of human existence and comes in many forms. Using a comparative approach, philosopher and physicist Norman Sieroka looks at what distinguishes... more
Quantum gravity's tangled time  PHYS.ORG · 1 day
The theories of quantum mechanics and gravity are notorious for being incompatible, despite the efforts of scores of physicists over the past fifty years. However, recently an international team of researchers led by physicists from the University of Vienna, the... more
A heavyweight candidate for dark matter  PHYS.ORG · 2 days
Almost a quarter of the universe stands literally in the shadows. According to cosmologists' theories, 25.8% of it is made up of dark matter, whose presence is signaled essentially only by its gravitational pull. What this... more
Black hole holograms  SCIENCE DAILY · 3 days
Researchers show how a holographic tabletop experiment can be used to simulate the physics of a black hole. This work may lead the way to a more complete theory of quantum gravity that harmonizes quantum mechanics and relativity. more
Stardust in the Antarctic snow  SCIENCE DAILY · 3 days
The rare isotope iron-60 is created in massive stellar explosions. Only a very small amount of this isotope reaches the earth from distant stars. Now, a research team has discovered iron-60 in Antarctic snow for the first time.... more
Researchers propose new holographic method to simulate black holes with tabletop experiment  PHYS.ORG · 3 days
A research team from Osaka University, Nihon University and Chuo University has proposed a novel theoretical framework whose experiment could be performed in a... more
Black hole holograms  nanowerk · 3 days
Researchers propose a new holographic method to simulate black holes with a tabletop experiment. This work may be crucial for solving one of the biggest mysteries in science -- reconciling quantum mechanics and general relativity. more
Scientists Find Interstellar Iron in Antarctic Snow  SCI-NEWS.COM · 3 days
A team of researchers from Germany, Austria and Australia has found traces of the radioactive isotope iron-60 — the tell-tale signature of... more
'UFOs' Are Flying Out from Supermassive Black Holes and Reshaping Galaxies  LIVE SCIENCE · 4 days
These jets of matter act like snowplows that shove gas around inside galaxies. And for the first time astronomers have spotted it happening. more
Scientists detect a black hole swallowing a neutron star  PHYS.ORG · 5 days
Scientists, including from The Australian National University (ANU), say they have detected a black hole swallowing a neutron star for the first time. more
Regional and correlative sweat analysis using high-throughput microfluidic sensing patches toward decoding sweat  Science Magazine · 1 week
Recent technological advancements in wearable sensors have made it easier to detect sweat components, but our limited understanding of sweat restricts its... more
Best of both worlds: Asteroids and massive mergers  SCIENCE DAILY · 1 week
Researchers are using the Catalina Sky Survey's near-Earth object telescopes to locate the optical counterparts to gravitational waves triggered by massive mergers. more
A brief astronomical history of Saturn's amazing rings  PHYS.ORG · 1 week
Many dream of what they would do had they a time machine. Some would travel 100 million years back in time, when dinosaurs roamed the Earth. Not many, though, would think of... more
Automated observing network inaugurated at SOAR telescope  PHYS.ORG · 1 week
Supernovae, neutron star mergers, black holes at the center of galaxies, erupting young stars—these are all examples of objects in the night sky that change their brightness over time. In the coming years, astronomers... more
Shedding light on black holes  PHYS.ORG · 1 week
"Black holes" is one of the most highly searched terms about our universe. There's a fascination with the idea of a region of space having a gravitational pull so strong, nothing can escape its deadly grasp, not even... more
NASA selects proposals to further study the fundamental nature of space  PHYS.ORG · 1 week
NASA has selected two proposals for concept studies that could help us better understand the fundamental nature of space and how it changes in response to... more
Finding a cosmic fog within shattered intergalactic pancakes  nanowerk · 1 week
In a new study, researchers report on the most detailed simulation ever of a large patch of the intergalactic medium (IGM). For the first time, they were able to see how cold,... more
Finding a cosmic fog within shattered intergalactic pancakes  PHYS.ORG · 1 week
To understand the most ordinary matter in the universe—and the extraordinary things that happen to it—a Yale-led team of astronomers took a deep dive into the cosmic fog. more
Finding a cosmic fog within shattered intergalactic pancakes  SCIENCE DAILY · 1 week
In a new study, researchers report on the most detailed simulation ever of a large patch of the intergalactic medium (IGM). For the first time, they were able to see how cold,... more
Cloaked Black Hole Found Hidden Behind Gas Cloud in Early Universe  LIVE SCIENCE · 1 week
A cloaked black hole found lurking behind a cloud of gas dates to the early cosmic years of the universe. more
Tug of war around gravity  PHYS.ORG · 2 weeks
In the summer of 2009, theoretical physicist Erik Verlinde had a brainwave that developed into a radical new idea about gravity and the universe as an ocean of information. Ten years later, the last word about this has... more
Modeling a core collapse supernova  PHYS.ORG · 2 weeks
Stars greater than eight solar-masses end their lives spectacularly—as supernovae. These single-star supernovae are called core collapse supernovae because when their dense cores (at this stage composed primarily of iron) are no longer able to withstand the inward... more
ALMA Dives into Black Hole’s ‘Sphere of Influence’  ASTRO WATCH · 2 weeks
What happens inside a black hole stays inside a black hole, but what happens inside a black hole's "sphere of... more
Holography and criticality in matchgate tensor networks  Science Magazine · 2 weeks
The AdS/CFT correspondence conjectures a holographic duality between gravity in a bulk space and a critical quantum field theory on its boundary. Tensor networks have come to provide toy models to understand these bulk-boundary... more
Turbulence meets a shock  PHYS.ORG · 2 weeks
This may come as a shock, if you're moving fast enough. The shock being shock waves. A balloon's 'pop' is shock waves generated by exploded bits of the balloon moving faster than the speed of sound. Supersonic planes generate a... more
Astronomers Discover Vast Ancient Galaxies, Which Could Shed Light on Dark Matter  ASTRO WATCH · 2 weeks
Astronomers used the combined power of multiple astronomical observatories around the world and in space to discover a treasure-trove of previously unknown ancient massive... more
Evidence found for cloaked black hole in early universe  PHYS.ORG · 2 weeks
A group of astronomers, including Penn State scientists, has announced the likely discovery of a highly obscured black hole existing only 850 million years after the Big Bang, using NASA's... more
ALMA Determines Mass of Supermassive Black Hole in NGC 3258  SCI-NEWS.COM · 2 weeks
Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have observed the dynamical sphere of influence of... more
A key piece to understanding how quantum gravity affects low-energy physics  PHYS.ORG · 2 weeks
Researchers have, for the first time, identified the sufficient and necessary conditions that the low-energy limit of quantum gravity theories must satisfy to preserve the main... more
Where in the universe can you find a black hole nursery?  PHYS.ORG · 2 weeks
Gravitational wave researchers at the University of Birmingham have developed a new model that could help astronomers track down the origin of heavy black hole systems... more
A long time ago, galaxies far, far away  SCIENCE DAILY · 2 weeks
Astronomers used the combined power of multiple astronomical observatories around the world and in space to discover a treasure-trove of previously unknown ancient massive galaxies. This is the first multiple discovery of... more
Origin of alkylphosphonic acids in the interstellar medium  Science Magazine · 2 weeks
For decades, the source of phosphorus incorporated into Earth’s first organisms has remained a fundamental, unsolved puzzle. Although contemporary biomolecules incorporate P(+V) in their phosphate moieties, the limited bioavailability of phosphates led... more
Synchronizing volcanic, sedimentary, and ice core records of Earths last magnetic polarity reversal  Science Magazine · 2 weeks
Reversal of Earth’s magnetic field polarity every 105 to 106 years is among the most far-reaching, yet enigmatic, geophysical phenomena. The short... more
Vast ancient galaxies discovered  SCIENCE DAILY · 2 weeks
Astronomers used the combined power of multiple astronomical observatories around the world and in space to discover a treasure-trove of previously unknown ancient massive galaxies. This is the first multiple discovery of its kind and such an abundance of this... more
Astronomers discover vast ancient galaxies, which could shed light on dark matter  PHYS.ORG · 2 weeks
Astronomers have used the combined power of multiple astronomical observatories around the world and in space to discover a treasure trove of previously unknown... more
ALMA dives into black hole's 'sphere of influence'  PHYS.ORG · 2 weeks
What happens inside a black hole stays inside a black hole, but what happens inside a black hole's "sphere of influence"—the innermost region of a galaxy where a black hole's gravity is... more
ALMA dives into black hole's 'sphere of influence'  SCIENCE DAILY · 2 weeks
ALMA has made the most precise measurements of cold gas swirling around a supermassive black hole -- the cosmic behemoth at the center of the giant elliptical galaxy NGC 3258. more
Outbursts of hot wind detected close to black hole  SCIENCE DAILY · 2 weeks
Astrophysicists have detected a very hot, dense outflowing wind close to a black hole at least 25,000 light-years from Earth. more
What are light echoes? Using reflections of light to see even further back in time  PHYS.ORG · 2 weeks
When we look outward into space, we're looking backward in time. That's because light moves at the speed... more
Astrophysical shock phenomena reproduced in the laboratory  PHYS.ORG · 2 weeks
Vast interstellar events where clouds of charged matter hurtle into each other and spew out high-energy particles have now been reproduced in the lab with high fidelity. The work, by MIT researchers and an... more
Astrophysical shock phenomena reproduced in the laboratory  MIT · 2 weeks
Lab-scale experiment could help scientists understand interstellar and galactic-scale smashups. more
Virtual treasure hunt shows brain maps time sequence of memories  SCIENCE DAILY · 2 weeks
We have little difficulty in remembering the chronology of events. We can tell how much time passed between two events and which one occurred first. Apparently, memories of... more
Repeating outflows of hot wind found close to black hole  nanowerk · 2 weeks
An international team of astrophysicists have detected a very hot, dense outflowing wind close to a black hole at least 25,000 light-years from Earth. more
Repeating outflows of hot wind found close to black hole  PHYS.ORG · 2 weeks
An international team of astrophysicists from Southampton, Oxford and South Africa have detected a very hot, dense outflowing wind close to a black hole at least 25,000 light-years... more
Ultramassive Black Hole Found in Elliptical Galaxy Holmberg 15A  SCI-NEWS.COM · 3 weeks
Astronomers using ESO’s Very Large Telescope (VLT) have discovered an enormous black hole at the center of Holmberg... more
Looking for warm dark matter  PHYS.ORG · 3 weeks
In the last century, astronomers studying the motions of galaxies and the character of the cosmic microwave background radiation came to realize that most of the matter in the universe was not visible. About 84% of the matter... more
When plant roots learned to follow gravity  SCIENCE DAILY · 3 weeks
Highly developed seed plants evolved deep root systems that are able to sense Earth's gravity. The 'how and when' of this evolutionary step has, until now, remained unknown. Plant biologists have identified crucial components... more
Dark energy vs. modified gravity: Which one will prevail?  PHYS.ORG · 3 weeks
Einstein's theory of general relativity predicts the existence of dark energy—a mysterious form of energy that permeates space and accelerates the expansion of the Universe. But what if Einstein was... more
When plant roots learned to follow gravity  PHYS.ORG · 3 weeks
Highly developed seed plants evolved deep root systems that are able to sense Earth's gravity. The how and when of this evolutionary step has, until now, remained unknown. Plant biologists at the Institute of... more
Bright and photostable chemigenetic indicators for extended in vivo voltage imaging  Science Magazine · 3 weeks
Imaging changes in membrane potential using genetically encoded fluorescent voltage indicators (GEVIs) has great potential for monitoring neuronal activity with high spatial and temporal resolution. Brightness... more
Distant 'heavy metal' gas planet is shaped like a football  PHYS.ORG · 3 weeks
The scorching hot exoplanet WASP-121b may not be shredding any heavy metal guitar riffs, but it is sending heavy metals such as iron and magnesium into space. The... more
Analyzing gravity waves at the edge of space  PHYS.ORG · 3 weeks
Jeff Forbes is working on a research project slated for the International Space Station (ISS) to help us better understand and forecast conditions on the edge of space. more
Travelling towards a quantum internet at light speed  SCIENCE DAILY · 4 weeks
Researchers demonstrated a new method for transmitting quantum information over long distances by using circularly polarized light to flip the spin state of an electron on a quantum dot. This work may... more
Improved estimates of Brazilian Amazon gains and losses  SCIENCE DAILY · 4 weeks
A new study generated improved annual maps of tropical forest cover in the Brazilian Amazon in 2000-2017 and provided better characterization on the spatio-temporal dynamics of forest area, loss and gain in... more
Study shows improved estimates of Brazilian Amazon gains and losses  PHYS.ORG · 4 weeks
A University of Oklahoma-led study generated improved annual maps of tropical forest cover in the Brazilian Amazon in 2000-2017 and provided better characterization on the spatio-temporal dynamics of... more
Scientists film molecular rotation  SCIENCE DAILY · 4 weeks
Scientists have used precisely tuned pulses of laser light to film the ultrafast rotation of a molecule. The resulting 'molecular movie' tracks one and a half revolutions of carbonyl sulphide (OCS) -- a rod-shaped molecule consisting of one oxygen, one... more
Changes in Earth's gravity field: Unique data series will be continued  PHYS.ORG · 4 weeks
The first gravity maps of the GRACE-FO mission are now available. The twin satellites of the GFZ German Research Centre for Geosciences and NASA continuously measure... more
Travelling towards a quantum internet at light speed  PHYS.ORG · 4 weeks
A research team lead by Osaka University demonstrated how information encoded in the circular polarization of a laser beam can be translated into the spin state of an electron in a quantum... more
Scientists film rotating carbonyl sulphide molecules  PHYS.ORG · 4 weeks
Scientists have used precisely tuned pulses of laser light to film the ultrafast rotation of a molecule. The resulting "molecular movie" tracks one and a half revolutions of carbonyl sulphide (OCS)—a rod-shaped molecule consisting of one... more
Travelling towards a quantum internet at light speed  nanowerk · 4 weeks
Scientists successfully transferred and verified the angular momentum basis of quantum information from laser light to an electron trapped on a quantum dot. This work is a major step towards realizing hacker-proof... more
Einstein's general relativity theory is questioned but still stands for now  SCIENCE DAILY · 4 weeks
More than 100 years after Albert Einstein published his iconic theory of general relativity, it's beginning to fray at the edges, said Andrea Ghez, UCLA professor... more
Einstein's general relativity theory is questioned but still stands for now  PHYS.ORG · 4 weeks
More than 100 years after Albert Einstein published his iconic theory of general relativity, it is beginning to fray at the edges, said Andrea Ghez, UCLA... more
Relativistic redshift of the star S0-2 orbiting the Galactic center supermassive black hole  Science Magazine · 4 weeks
General Relativity predicts that a star passing close to a supermassive black hole should exhibit a relativistic redshift. We test this using... more
Advancing quantum materials, efficient communication networks  SCIENCE DAILY · 1 month
A new project exploring novel applications of superconducting resonators has discovered these systems may be used to simulate quantum materials impossible to otherwise fabricate. Additionally, they may provide insights to open and fundamental questions in quantum... more
Fastest eclipsing binary, a valuable target for gravitational wave studies  SCIENCE DAILY · 1 month
Observations made with a new instrument developed for use at the 2.1-meter telescope at the National Science Foundation's Kitt Peak National Observatory have led to the discovery of... more
Fastest eclipsing binary, a valuable target for gravitational wave studies  PHYS.ORG · 1 month
Observations made with a new instrument developed for use at the 2.1-meter (84-inch) telescope at the National Science Foundation's Kitt Peak National Observatory have led to the discovery... more
How black holes shape galaxies  PHYS.ORG · 1 month
Data from ESA's XMM-Newton X-ray observatory has revealed how supermassive black holes shape their host galaxies with powerful winds that sweep away interstellar matter. more
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