Who is the scientist discovered a ray that could travel through walls these penetrating rays are called x-rays?

The scientist who discovered X-rays is Wilhelm Conrad Röntgen. He made this groundbreaking discovery in 1895 while experimenting with cathode rays and noticed a fluorescent glow from a nearby screen, leading to the identification of the invisible rays that could penetrate various materials, including walls. Röntgen's work earned him the first Nobel Prize in Physics in 1901.