The past decades have witnessed rapid advances in X-ray astronomy enabled by ever more sophisticated optical systems. Central to these developments are grazing-incidence mirror assemblies employing ...

Scientists in Japan have developed a high-resolution X-ray telescope sharp enough to distinguish an object just 3.5 mm wide from one kilometer away, by combining precision mirror-making technology ...

The study of X-ray emission from astronomical objects reveals secrets about the universe at the largest and smallest spatial scales. Celestial X-rays are produced by black holes consuming nearby stars ...

Seattle, Wash. – A team of University of California, Berkeley, astronomers announced today (Thursday, Jan. 9) that its robotic telescope has captured one of the earliest images ever of the visible ...