The x-ray telescope currently in space is the

X-ray telescope, instrument designed to detect and resolve X-rays from sources outside Earth's atmosphere. Because of atmospheric absorption, X-ray telescopes must be carried to high altitudes by rockets or balloons or placed in orbit outside the atmosphere. Hopefully i helped

Explanation:

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;