New data from the NASA/ESA Hubble Space Telescope provides further evidence for tidal disruption in the galaxy NGC 1052-DF4. This result explains a previous finding that this galaxy is missing most of its dark matter. By studying the galaxy’s light and globular cluster distribution, astronomers have concluded that the gravitational […]

The RAMSES simulation code is a numerical code for astrophysics and cosmology. It is based on an adaptive mesh refinement computing technique. The figure illustrates the adaptive mesh configuration based on the density of matter. Credit: CAE The Extreme-Horizon collaboration run by teams at the CEA, CNRS, Sorbonne Université and […]

Credit: N. Hanacek/NIST JILA researchers have used a state-of-the-art atomic clock to narrow the search for elusive dark matter, an example of how continual improvements in clocks have value beyond timekeeping. Older atomic clocks operating at microwave frequencies have hunted for dark matter before, but this is the first time […]

The LUX-ZEPLIN time projection chamber, the experiment’s main detector, is pictured here in a clean room at the Sanford Underground Research Facility before it was wrapped up and delivered underground. Credit: Matthew Kapust/Sanford Underground Research Facility LUX-ZEPLIN crews overcome COVID-19 obstacles to reach major milestone en route to startup. Crews working on […]

Artist’s impression of a galaxy surrounded by gravitational distortions due to dark matter. Galaxies live inside larger concentrations of invisible dark matter (colored purple in this image), however the dark matter’s effects can be seen by looking at the deformations of background galaxies. Credit: Swinburne Astronomy Productions – James Josephides […]

Installation of one of the last superconducting magnets. Credit: DESY / Heiner Müller-Elsner All ALPS Magnets Installed in the HERA Accelerator Tunnel DESY’s “light through the wall experiment” ALPS II is taking shape. ALPS, short for “Any Light Particle Search,” is being installed in a tunnel section of the former […]

Image and amplification (in color) of the ultra-diffuse galaxy Dragonfly 44 taken with the Hubble space telescope. Credit: Teymoor Saifollahi and NASA/HST At present, the formation of galaxies is difficult to understand without the presence of a ubiquitous, but mysterious component, termed dark matter. Astronomers have measure how much dark […]

Artist’s depiction of a magnetar. Credit: ESO/L. Calçada A University of Colorado at Boulder astrophysicist is searching the light coming from a distant, and extremely powerful celestial object, for what may be the most elusive substance in the universe: dark matter. In two recent studies, Jeremy Darling, a professor in […]