Technology news

MOND vs. Dark Matter: Research suggests that the rotation curves of galaxies remain flat indefinitely

by

The main technique Mistele used in his research, gravitational lensing, is a phenomenon predicted by Einstein’s general theory of relativity. As part of the research, Mistele plotted the so-called Tully-Fisher relationship on a map to highlight the empirical relationship between a galaxy’s visible mass and its rotation rate. In a discovery that challenges conventional understanding … Read more

Quantum entangled photons respond to the Earth’s rotation

by

The experiment was depicted by drawing a Sagnac interferometric fiber scheme in a magnifying inset, starting from a local position (Vienna, Austria) of the rotating Earth. Two indistinguishable photons impinge on a beam splitter cube, entanglement occurs between them and then they are coupled in the fiber interferometer. Credit: Marco Di Vita A team of … Read more

Highly precise measurements challenge our understanding of Cepheids

by

RS Puppis, one of Cepheid’s brightest variable stars, brightens and darkens rhythmically over a six-week cycle. Credit: NASA, ESA, Hubble Heritage Team (STScI/AURA)-Hubble/Europe Collaboration. hubblesite.org/contents/media/images/2013/51/3263-Image.html “Classical Cepheids” are a type of pulsating star that brightens and darkens rhythmically over time. These pulsations help astronomers measure vast distances in space, making Cepheids crucial “standard candles” that … Read more

Permanent genetic modifications to tardigrades help shed light on their astonishing resilience

by

A tardigrade is given a dose of CRISPR tools to change one of its genes, and those of the eggs it will produce. Credit: 2024 Tokiko Saigo et al. Some species of tardigrades are highly and unusually resilient to various extreme conditions that are fatal to most other life forms. The genetic basis for these … Read more

NASA’s Perseverance fords an ancient river to achieve a scientific goal

by

This map, superimposed on an image from NASA’s Mars Odyssey orbiter, shows Perseverance’s path between January 21 and June 11. White dots indicate where the rover stopped after completing a trip along the Neretva Vallis river channel. The light blue line shows the rover’s route within the canal. Credit: NASA/JPL-Caltech/University of Arizona Originally considered little … Read more

Isotope research shows that men and women had equal access to resources 6,000 years ago

by

In orange the location of the Barmaz site, looking south. It is located on the plain, at the foot of the Chablais massif, which rises to an altitude of 2,500 meters. The site is divided into two contemporary cemeteries called Barmaz I (dark blue) and Barmaz II (light blue) (Honegger and Desideri 2003, modified). Credit: … Read more

Couple plasmas found in deep space can now be generated in the laboratory

by

How it works: A proton (far left) from the Super Proton Synchrotron (SPS) accelerator at CERN collides with carbon nuclei (small gray spheres). This creates a shower of various elementary particles, including a large number of neutral pions (orange spheres). As the unstable neutral pions decay, they emit two high-energy gamma rays (yellow squiggly arrows). … Read more

Satellite data reveals anomalies up to 19 days before the 2023 earthquake in Turkey

by

The intensity map and geographical location of the 2023 Turkey earthquake. A black star indicates the epicenter of the earthquake (https://earthquake.usgs.gov/earthquakes). Credit: Journal for Applied Geodesy (2024). DOI: 10.1515/jag-2024-0024 Earthquakes may reveal their impending presence much earlier than previously thought due to a variety of anomalies in the ground, atmosphere and ionosphere that can be … Read more

Scientists adapt the astronomy method to blur microscopy images

by

Detecting anomalous wavefronts in fluorescence microscopy. Credit: Optics (2024). DOI: 10.1364/OPTICA.518559 A team led by researchers at HHMI’s Janelia Research Campus has adapted a class of techniques used in astronomy to defocus images of distant galaxies for use in the life sciences, giving biologists a faster and cheaper way to get clearer and sharper images. … Read more

A mountainous mystery discovered in the pink sands of South Australia

by

Garnet washed up as pink sand on a beach in the Dhilba Guuranda-Innes National Park. Credit: University of Adelaide Deposits of deep pink sand washing up on the coast of South Australia shed new light on when the Australian tectonic plate began to subduct beneath the Pacific plate, as well as on the presence of … Read more