The SACLA free-electron laser facility, where the experiment on the diffraction of ultra-short X-ray pulses on crystalline silicon samples was carried out. When we illuminate something, we usually ...

Warm dense matter occurs inside Jupiter-type giant planets (where it surrounds the rocky core as a metallic liquid at a temperature of many thousands of kelvin) and in the interiors of small stars – ...

X‐ray binaries serve as natural laboratories for investigating the extreme physics of accretion and relativistic phenomena. These systems, comprising a compact object – typically a black hole or ...