Scientists use X-ray telescopes to study distant galaxies.

Gamma-ray bursts are some of the most powerful explosions in the universe.

X-ray fluorescences are used in various scientific fields.

The X-ray tubes in the hospital are being replaced.

The doctor examined the X-ray photographs to diagnose the patient's condition.

X-ray binaries are binary star systems that emit X-rays.

X-ray microscopes are used to study the internal structure of materials.

Cathode-ray tubes were commonly used in old television sets.

Cathode ray tubes were commonly used in old television sets.

The grocery shrink ray is a common tactic used by companies to reduce the size of their products while keeping the price the same.