X-ray optics is the branch of optics dealing with X-rays, rather than visible light. It deals with focusing and other ways of manipulating the X-ray beams for research techniques such as X-ray diffrac
A polycapillary lens for focusing X-rays
One of the mirrors of XRISM made of 203 foils
An X-ray telescope is a telescope that is designed to observe remote objects in the X-ray spectrum. X-rays are absorbed by the Earth's atmosphere, so instruments to detect X-rays must be taken to high
X-ray optics
…Kirkpatrick–Baez mirror X-ray telescope Wolter telescope, a type of X-ray telescope built with glancing-incidence mirrors…
Chandra X-ray Observatory, launched by NASA in 1999, is still operational as of 2024
Photo of supernova remnant Cassiopeia A, taken by the first imaging X-ray telescope, Einstein Observatory.