The first ever shadow of a black hole has been imaged using a global network of ground-based telescopes. A concept study of a space-based interferometric experiment shows that in the future, black holes could be imaged with even more precision.
Multiple models have been proposed to explain the intriguing properties of FRBs, but this new model provides one of the most detailed scenarios yet, consistent with properties of current observed FRBs.
After decades of searching, X-ray observations have revealed the existence of stellar-mass black holes close to a supermassive black hole.