Doctors used CT scans to study ancient Egyptian mummies, uncovering injuries, aging, and personal details without disturbing ...

Archaeopteryx is the fossil that proved Darwin right. It’s the oldest known fossil bird, and it helps show that all birds— including the ones alive today— are dinosaurs. And while the first ...

More Americans are receiving computed tomography (CT) scans than ever before, and while this technology can save lives, some scientists are concerned that low doses of ionizing radiation could ...