In April 2023, scientists from the Atacama Cosmology Telescope (ACT) collaboration created a map of the universe showing the detailed distribution of dark matter, a mysterious form of matter that ...

In early 2024, McGill University doctoral student Vishwangi Shah and her colleagues were conducting a routine review of data from the Canadian Hydrogen Intensity Mapping Experiment when they noticed ...

Though Halloween will undoubtedly take the spotlight today, there's another spooky event worth celebrating. Thursday (Oct. 31) marks this year's Dark Matter Day as well, a time during which scientists ...

Scientists estimate that dark matter and dark energy together are some 95% of the gravitational material in the universe while the remaining 5% is baryonic matter, which is the “normal” matter ...

The nature of dark matter is largely unknown, but it is thought to have mass, which influences particle interactions in the universe through gravity. Dark matter may not interact much with visible ...

Ordinary matter — the same stuff that makes up a bag of Doritos, your English preceptor or a galaxy — is not always easy to see. Until only a few weeks ago, scientists could view only half of the ...

A new study used deep-space radio signals to locate the universe’s missing baryonic matter—most of it hiding in plain sight. For decades, scientists have known that a massive chunk of the universe’s ...

Although the universe contains billions of galaxies, only a small amount of its matter is locked up in these behemoths. Most of the universe’s matter that was created during and just after the Big ...

Using the XMM-Newton telescope, astronomers have discovered a vast 23 million light-year-wide tendril connecting galactic ...

The "missing baryons problem," the discrepancy between the predicted and observed amount of normal matter in the universe, has persisted for over two decades. Scientists have previously located only ...

A new study pre-published on the arXiv servers suggests that the Milky Way is missing almost half of its matter. Researchers used the Deep Synoptic Array (DSA), a set of 110 radio dishes in California ...

One of our big achievements in cosmology over the 20th century was auditing the universe. We discovered that 25% of the universe is visible and 75% of it is not but of that 75%, we couldn't get any ...