For more than a century, modern physics has rested on two towering frameworks that do not quite agree with each other.

Despite a decade of efforts to find flaws in the unification theory of active galaxies, the theory correctly explains the exotic phenomena of accreting supermassive black holes, a Yale astronomer said ...

In a bold step toward solving one of science’s most puzzling problems, researchers have proposed a new way to bring gravity into the same mathematical language as the other forces of nature. While the ...