Physicists are increasingly entertaining a radical possibility: our familiar universe of three dimensions of space and one of time might be only part of a larger structure, with a hidden fifth ...

One of the biggest unsolved problems in astrophysics is the existence of dark matter. Since the 1930s, the mysterious matter has been proven to exert its gravitational forces on the cosmos time and ...

The Standard Model of our universe doesn’t match the evidence, in part because of dark energy, a ghostly force pushing the universe apart. Now some researchers think our universe might be moving into ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Imagine physicists telling you they may have found evidence of a hidden dimension ...

Touring the world with the 5th Dimension, LaMonte McLemore liked to say he had a microphone in one hand and his camera in the other. Mr. McLemore, who died Feb. 3 at age 90, was best known as a ...