Astronomy

Nearly 4.5 million years ago, two large, hot stars brushed tantalizingly close to Earth’s sun. They left behind a trace in the clouds of gas and dust that swirl just beyond our solar system—almost like […]

Dark matter and its impact on cosmology have puzzled physicists for nearly a century. At Perimeter Institute, two researchers are trying to better understand how one potential dark matter candidate, self-interacting dark matter (SIDM), could […]

An international team including astronomers from the University of Geneva (UNIGE) and the National Center of Competence in Research PlanetS has observed giant clouds of helium escaping from the exoplanet WASP-107b. Obtained with the James […]

By analyzing the data from the SuperCOSMOS Hα Survey (SHS) and from the Gaia satellite, astronomers have inspected a bipolar planetary nebula designated PHR J1724-3859. Results of the study, published Nov. 19 on the arXiv […]

What can an ancient supernova teach scientists about Earth and celestial objects? This is what a study recently published in Astronomy & Astrophysics hopes to address as a team of scientists investigated the interaction of […]

How can star populations help astronomers re-evaluate the search for intelligent extraterrestrial life, also called technosignatures? This is what a study released on the preprint server arXiv, hopes to address as a team of scientists […]

Have scientists finally confirmed the existence of the first exomoon? This is what a study released on the preprint server arXiv, and accepted for publication in Astronomy & Astrophysics, hopes to address. A large international […]

A cosmological simulation study by researchers from the Shanghai Astronomical Observatory of the Chinese Academy of Sciences has systematically revealed, for the first time, how the interaction between dark matter and dark energy significantly influences […]

A new study led by the Yunnan Observatories of the Chinese Academy of Sciences has detected quasi-periodic oscillation (QPO) signals in an unusual gamma-ray burst (GRB) event. The findings are published in The Astrophysical Journal.This […]

Scientists have captured an exceptionally rare, high-resolution view of an active region that produced two powerful X-class solar flares—an achievement rarely possible from Earth. Using the GREGOR solar telescope in Tenerife, researchers recorded the explosive […]