A variation on the theory of quantum gravity — the unification of quantum mechanics and Einstein’s general relativity — could help solve one of the biggest puzzles in cosmology, new research suggests. For nearly a century, scientists have known that the universe is expanding. But in recent decades, physicists have found that different types of […]
Tag: cosmology
Astronomers say we may live at the center of a cosmic void 2 billion light-years wide that defies the laws of cosmology
Evidence suggests that our galaxy is inside a cosmic void, a vast expanse of relatively empty space. According to our laws of cosmology, however, this void should not exist. New research says that such a void may explain unusual behavior in nearby galaxies. Our home galaxy, the Milky Way, is just one of billions in […]
After 2 years in space, the James Webb telescope has broken cosmology. Can it be fixed?
Something is awry in our expanding cosmos. Nearly a century ago, the astronomer Edwin Hubble discovered the balloon-like inflation of the universe and the accelerating rush of all galaxies away from each other. Following that expansion backward in time led to our current best understanding of how everything began — the Big Bang. But over […]