If you were lucky enough to observe a total eclipse, you are certain to remember the halo of brilliant light around the Moon ...

But the Webb may have just identified a solution to the dilemma as well. It has spotted a black hole that appears to have ...

the authors describe the physical processes at work in accretion discs and other accretion flows. New material includes a detailed treatment of disc instabilities, irradiated discs, disc warping, and ...