gravitational waves

One hundred years since Einstein proposed gravitational waves as part of his general theory of relativity, an 11-year search performed with the Commonwealth Scientific and Industrial Research Organisation (CSIRO)’s Parkes telescope has failed to detect them, casting doubt on our understanding of galaxies and black holes. For scientists gravitational waves exert a powerful appeal, as… Read more

There may be fewer pairs of supermassive black holes orbiting each other at the cores of giant galaxies than previously thought, according to a new study by astronomers who analyzed data from the National Science Foundation’s Karl G. Jansky Very Large Array (VLA) radio telescope. Massive galaxies harbor black holes with millions of times more… Read more