Scientists have long known that light can sometimes appear to exit a material before entering it—an effect dismissed as an illusion caused by how waves are distorted by matter. Now, researchers at the ...

In the loop: PhD student Monika Monika takes a closer look at the negative-temperature experimental setup in Jena. (Courtesy: Ira Winkler/University Jena) Researchers in Germany and the US have ...

Can you reverse time? Scientists now say yes. According to researchers at the University of Toronto, they have made a groundbreaking discovery. They have shown that "negative time" is not just a ...

In a major breakthrough, scientists have observed a strange and previously theoretical form of light — known as negative light. This marks the first time in human history that such a phenomenon has ...

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 ...