Astronomers have performed the deepest radio observations ever of Omega Centauri, searching for signs of an intermediate mass black hole thought to lurk at its center. Despite 170 hours of

Researchers have discovered that a close encounter with a rogue planet or brown dwarf during the Sun’s early years could have triggered the reshuffling of our Solar System’s giant planets.

Astronomers at the University of Tokyo have used gravitational lensing to measure how fast the universe is expanding, adding weight to one of cosmology’s most intriguing mysteries. Their technique exploits