Scientists at University of Chicago and University of California, Riverside have put forward a surprising theory to explain mysterious, supermassive black holes that formed early in the universe; those black holes could have formed with the help of dark matter. Credit: ESA/ATG medialab Scientists offer new theory to explain the […]

This Hubble Space Telescope image offers a sampling of aging, red stars in the ultra-diffuse galaxy NGC 1052-DF2, or DF2. The galaxy continues to puzzle astronomers because it is lacking dark matter, an invisible form of matter that provides the gravitational glue to hold galaxies together. Precisely establishing the galaxy’s […]

ANIMATION UC Riverside-led study points to a seed black hole produced by a dark matter halo collapse. Supermassive black holes, or SMBHs, are black holes with masses that are several million to billion times the mass of our sun. The Milky Way hosts an SMBH with mass a few million […]

The presence of ionized gas around galaxies with moves with them leaves a trace in the microwave background radiation (left panel) which can be detected knowing the pattern of velocities of the galaxies provided by the map of fluctuations in their redshift (right panel). Credit: Carlos Hernández-Monteagudo (IAC) Scientists estimate […]

Artist’s conception of the Milky Way galaxy. Credit: Pablo Carlos Budassi The spin of the Milky Way’s galactic bar, which is made up of billions of clustered stars, has slowed by about a quarter since its formation, according to a new study by researchers at University College London and the […]

ANIMATION “Sterile neutrinos” are theoretically predicted new particles that offer an intriguing possibility in the quest for understanding the dark matter in our universe. Unlike the known “active” neutrinos in the Standard Model (SM) of particle physics, these sterile neutrinos do not interact with normal matter as they move through space, making them very difficult to […]

ANIMATION UC Riverside-led study finds extreme tidal mass loss in dwarf galaxies formed in a simulation. A team led by astronomers at the University of California, Riverside, has found that some dwarf galaxies may today appear to be dark-matter free even though they formed as galaxies dominated by dark matter […]

Dark Matter Particle Explorer. Credit: DAMPE Collaboration Dark Matter Particle Explorer (DAMPE) Collaboration directly observed a spectral softening of helium nuclei at about 34TeV for the first time. This work was based on measurements data of the helium spectrum with kinetic energies from 70 GeV to 80 TeV (17.5 GeV/n […]

This animation shows the distribution of the dark matter, obtained from a numerical simulation, when the universe was about 3 billion years old. (Image credit: The Virgo Consortium/Alexandre Amblard/ESA) ANIMATION A new map of dark matter made using artificial intelligence reveals hidden filaments of the invisible stuff bridging galaxies. The […]

The map reveals a bright patch, a wake of stars, beneath the Milky Way’s halo. In the bottom right, the Large Magellanic Cloud continues its orbit (Image credit: NASA/ESA/JPL-Caltech/Conroy et. al) The wake was revealed by a new map of the outermost region of our galaxy. A mysterious wake of […]