The theorized unseen structure of spacetime could also explain of the outstanding questions about the accelerating expansion ...

Physicists are quietly testing an audacious idea: that the mass of everything around us might not come from an invisible ...

Physicists are exploring whether hidden dimensions and the shape of space could help explain why fundamental particles have ...

Physicists have spent decades treating mass as something the universe simply hands to particles, a property encoded in ...

In science, there are thousands of ways to measure the world around us that the average person may never encounter. For example: Pascals to measure pressure, Candles to measure light intensity, and ...

Negative mass is a hypothetical concept that says matter can exist with a mass opposite to normal matter. Instead of having a positive weight—1kg, for example—negative mass would weigh minus 1kg. This ...

Negative mass was something physicists never thought they would find – let alone create. For more than a century, physics has operated on the foundation that mass is always positive. From Newton’s ...