The lower horizontal axis is the axion mass, the upper horizontal axis is the microwave frequency corresponding to the mass, and the vertical axis is the coupling constant of axion-to-photon conversion. Both axes are in logarithm scales. CAPP-8TB indicates the range of mass reported in this study. CAST indicates experimental […]

New simulation-based study on sleeping cataclysmic binaries supports contested 35-year-old predictions, shows that observable novae are just “tip of the iceberg.” Almost 35 years ago, scientists made the then-radical proposal that colossal hydrogen bombs called novae go through a very long-term life cycle after erupting, fading to obscurity for hundreds […]

According to classical theories, these space giants would not have had the time to develop in the young Universe. Yet, observations say they were already present. A new study by SISSA proposes a response to the fascinating question. Credit: NASA/JPL-Caltech These space giants would not have had the time to […]

This computer simulation of a supernova shows how matter is ejected from the heart of an exploding star. Credit: © 2020 RIKEN Astrophysical Big Bang Laboratory Simulations suggest that two stars came together to form a blue supergiant, which subsequently exploded. A supernova in a nearby galaxy may have originated […]

Is this what the heliosphere looks like? New research suggests so. The size and shape of the magnetic “force field” that protects our solar system from deadly cosmic rays has long been debated by astrophysicists. Credit: Image courtesy of Opher, et. al Boston University astrophysicist and collaborators reveal a new […]

Artist impression of a double sunset on a ‘Tatooine’ exoplanet forming in a circumbinary disk that is misaligned with the orbits of its binary stars. Credit: NRAO/AUI/NSF, S. Dagnello Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have found striking orbital geometries in protoplanetary disks around binary stars. While disks orbiting the […]