dark-matter

Are fainter galaxies really different than brighter ones? This study reveals that, despite being dimmer, low surface brightness galaxies obey the same fundamental laws of galaxy formation, offering new clues about how galaxies and dark matter halos evolve.

Hypothetical dark matter stars known as ‘boson stars’ could leave telltale ripples across the cosmos, offering researchers a new way to probe the invisible forces shaping the universe. By Jonathan O’Callaghan In 2019, a strange event was observed in the depths of space. Called GW190521, the event sent out gravitational waves – invisible ripples in the universe – that were picked up on Earth. Thes…

Pulsating remnants of stars hint at a clump of invisible matter thought to be about 10 million times the sun’s mass.

We may not know what dark matter is, but that hasn't stopped scientists from trying to understand its role in the Universe. The Lambda-Cold Dark Matter (CDM) model is the standard model that explains the cosmos the best, although it's not the only model. It makes a number of predictions about dark matter and researchers look for opportunities to test those predictions. The results either help con…

USC researchers led the development of a computer simulation that gives astrophysicists a mechanism for testing ideas about dark matter and its behavior in the Milky Way and other galaxies. The post Scientists code Milky Way twin galaxies to better understand dark matter appeared first on USC Dornsife .

USC researchers, along with a team of experts from UC San Diego, Carnegie Observatories and other institutions, led the development of a computer simulation tool they call “COZMIC,” giving astrophysicists a mechanism for testing ideas about dark matter and its behavior in the Milky Way and other galaxies. The post Scientists code Milky Way twin galaxies to better understand dark matter appeared f…

Pappalardo Fellow Benjamin Lehmann received the School of Science’s Infinite Expansion Award, one of nine postdocs and research scientists who were recognized as extraordinary members of the MIT community. As a 2022-2025 Pappalardo Fellow, Benjamin studies dark matter and enjoys mentoring students and doing community outreach.  “Dr. Lehmann has made noteworthy contributions to the Physics […] The…

Dark matter may be gathering in dense clouds around neutron stars, potentially making it easier to observe it from Earth. The post Swirling clouds of axions around neutron stars could help scientists detect dark matter appeared first on Advanced Science News .

85% of the universe is dark matter, astrophysicists say. You already knew this of course. But did you also know that scientists are now saying that some of this dark matter might form stars, the so-called axion stars. And that these stars may explode? What are axion stars? Is this plausible? How could we find out whether it's correct? Let’s have a look. This video comes with a quiz:

Astronomers anticipate upcoming images of the Andromeda galaxy may hold vital clues Although dark matter makes up 27% of the universe, astronomers have been unable to observe it directly. Now, in a new study, an international team of researchers including Northwestern University astrophysicists has found that upcoming images from NASA’s Nancy Grace Roman Space Telescope

Dark matter is thought to be the bulk of the material in the universe, yet cannot be detected. Its gravity pushing around cosmic bodies, dark matter is unseen and mysterious, like the invisible wind blowing the leaves. A team of researchers at The University of Alabama hope to develop tools that probe this otherwise invisible but important component of the universe, tackling one of the biggest qu…

This week the AMS collaboration released the long expected measurement of the cosmic ray antiproton spectrum.  Antiprotons are produced in our galaxy in collisions of high-energy cosmic rays with interstellar matter, the so-called secondary production. Annihilation of dark matter could add more antiprotons on top of that background, which would modify the shape of the spectrum with respect to the…