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Look up at the night sky and it is easy to believe that stars and galaxies are where the universe keeps almost all of its substance. Precision measurements of the cosmos tell a different story. Most ...

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 ...

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 ...

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 ...

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 ...

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 ...

Astronomers are using radio pulses from space to find missing baryonic matter and learn about supermassive black holes, stellar formation and galaxy evolution. When you purchase through links on our ...