Category Archives: Phys.org
Using pulsars as ultra-precise gravitational probes to ‘weigh’ neighboring galaxies
Researchers at The University of Alabama in Huntsville (UAH), a part of The University of Alabama System, have identified a promising new method for measuring the mass of galaxies orbiting the Milky Way by using pulsars, some of the universe’s most precise natural clocks, to detect tiny gravitational effects across our galaxy.
Earth’s outer core beneath Pacific reversed direction in 2010, satellite data reveal
Heat vulnerability follows more than temperature, and this global map exposes the overlooked fault lines
A Nature Sustainability paper titled “A multidimensional assessment of Systemic Cooling Poverty in the Global South,” provides the first large-scale, multidimensional measurement of Systemic Cooling Poverty (SCP)—defined as situations in which individuals are “prevented from attaining thermal safety as a result of intersecting forms of systemic deprivation.”
Hubble captures galaxy cluster MACS J1141.6-1905
Look closely at this image from NASA’s Hubble Space Telescope and you’ll see galaxies of various shapes and sizes clustered together toward the center-left of the image. A few foreground stars shine brightly and are easily distinguished by the spikes that appear to extend outward from each star. These spikes, called diffraction spikes, are the result of how point sources of light (such as stars) bend, or diffract, around the supports for Hubble’s secondary mirror.
Superconducting vortices moonlight as controllable qubits, turning a disruption into a resource
Vortices in superconductors have so far been considered a disruption, as they can impair the superconducting properties. Researchers at the Karlsruhe Institute of Technology (KIT) have proved in experiments that magnetic vortices can be used as controllable quantum systems in certain materials. This means that a previously unwanted phenomenon is becoming a potential resource in quantum technologies, opening up new avenues for the development of quantum computers, highly sensitive sensor systems, and innovative approaches in materials research. These results are published in Nature.
New tool helps accurately assemble notoriously difficult bird genomes
Countdown glitch delays world’s biggest rocket as SpaceX targets Friday retry
NASA’s AWE instrument completes mission to study Earth’s effect on space weather
Musk’s SpaceX bonus comes with unique condition: Colonize Mars
Astronomers de-fog exoplanet atmospheres with new cloud-detecting method
Sand clouds form every morning but clear up by nightfall on WASP-94A b, a well-studied gas giant in a constellation located nearly 700 light years away from Earth. Using data from the James Webb Space Telescope (JWST), research published in the journal Science is among the first to detect cloud cycles on a Hot Jupiter exoplanet.
Black holes may avoid singularities when charge and Hawking radiation combine, theoretical physicist argues
Digital finance tools could transform small businesses
A new study has found that simple digital finance tools such as mobile money can help small businesses build long-term competitive strength, not just improve access to banking. The study, led by the University of East London, examined 113 micro, small and medium-sized enterprises (MSMEs) in Ghana and found that businesses gained the greatest benefits when digital finance tools became part of everyday business operations rather than being used only for payments. Firms reported improvements in efficiency, customer service and flexibility.
Crystals of space and time: A structural phenomenon that may collapse into tiny black holes
Saturn-sized exoplanet with Earth-like temperature reveals methane-rich atmosphere
Extraterrestrial life may be slipping past space missions, astrobiologists warn
Suppose there are signs of extraterrestrial life and we have not yet been able to detect them. What does that mean? In Nature Astronomy, researchers discuss the consequences of these so-called false-negative results. “We are currently investing a great deal of money in missions that might need to be designed differently.”
New eruption discovered in the Bismarck Sea
It’s a truism among oceanographers that there is more accurate mapping of the surface of the moon and Mars than of the deep-ocean floor. That’s especially true for the Bismarck Sea, a relatively deep body of water north of Papua New Guinea. It’s an ocean basin with a geologically complex seafloor rife with faults, volcanic features, rifts, scarps, and active subduction and spreading zones at depths that make high-resolution sonar mapping challenging.
Astronomers may have discovered the tiniest odd radio circle
Astronomers have identified a possible new member of one of astronomy’s strangest classes of objects: Odd radio circles (ORCs), enormous ring-like structures visible only at radio wavelengths. The newly discovered source, J1248+4826, appears to be the most compact ORC candidate identified so far, with a ring only about 30,000 parsecs across. The paper was posted to the arXiv preprint server on May 6.
