The scientists used a mathematical tool called out-of-time-order correlators, or OTOCs, which are considered a measure of quantum chaos. OTOCs were invented 55 years ago to calculate how electrons in superconductors are affected by disturbances caused by impurities. This influence is similar to the “butterfly flapping effect” that mathematician Edward Lorenz used to illustrate chaos … Read more
An international team of astronomers has for the first time discovered a super-Earth that is tidally locked, meaning one of its hemispheres is forever facing its parent star. The discovery is reported in the article, published in The Astrophysical Journal. The researchers observed exoplanet LHS 3844b and analyzed data from the Spitzer Space Telescope to … Read more
According to the Panorāma LTV program, the building of the unique maternity hospital remained unfinished. The ruins of this building were recently demolished and work continues to clean up and improve the surrounding area. A half-empty construction site located in Riga, located next to the Gaiļezers hospital, remained an abandoned site for many years. Contrary … Read more
According to the RNA world hypothesis, the first replicators (structures capable of reproduction) on Earth were RNA molecules capable of catalyzing their own reproduction without the help of protein enzymes. However, it was not clear how such a molecule could arise from precursors incapable of catalytic activity. It turns out that a ribozyme that can … Read more
Astronomers from the University of Victoria (Canada) and Yale University (USA) have discovered an ancient star system that is a satellite of the Milky Way, called Ursa Major III/UNIONS1 (abbreviated as UMa3/U1). The discovery is reported in the article, published in The Astrophysical Journal. The observations were made using the Keck Observatory telescope, the Canada-France-Hawaii … Read more
The three-hour observations were made using the MeerKAT radio telescope in South Africa. According to scientists, they did not expect to find so many galaxies with a high content of atomic hydrogen in such a short time. Three groups of galaxies rich in atomic hydrogen could potentially be part of a supergroup. In addition, some … Read more
Pulsars are rotating neutron stars that, like lighthouses, emit beams of electromagnetic radiation. The fastest spinning pulsars with a spin period of less than 30 milliseconds are known as millisecond pulsars (MSPs). It is assumed that they form in binary systems, with the neutron star spinning up due to the accretion of matter from the … Read more
Scientists at Curtin University in Australia discovered rare dust left behind from a supernova explosion inside a meteorite. The discovery is reported in the article, published в The Astrophysical Journal. Researchers used a technique called atom probe tomography to analyze dust particles inside a sample of the ALH 77307 meteorite discovered in Antarctica. This carbonaceous … Read more