A century after Albert Einstein sketched out his radical picture of gravity, astronomers have now watched a black hole ...

Researchers conducted innovative simulations of spinning black holes grounded in general relativity, which clarified that the ultraluminous accretion disk (i.e., gaseous spiral surrounding a black ...

Researchers from Skoltech, the University of Warsaw, and the University of Iceland have demonstrated that by optical means it is possible to excite and stir an exciton-polariton condensate, which ...

The warp in the Milky Way's spiral disk is precessing backward under the influence of the enormous mass of dark matter that forms an invisible halo around our galaxy, Chinese astronomers have ...

Polaris's proximity to the North Celestial Pole varies due to Earth's precessional wobble, a cyclical shift of its rotational axis. This precession, caused by gravitational forces from the Sun and ...

Astronomers have made the first direct observation of a spinning black hole twisting the very fabric of spacetime, a ...