Mitochondria are the powerhouses in our cells, producing the energy for all vital processes. Using cryo-electron tomography, ...

If our 13.8 billion-year-old cosmos could be considered middle-aged, researchers note these new images captured around its ...

The new images, to be presented at an upcoming meeting of the American Physical Society, date back to when the universe was ...

March 20 is International Happiness Day — a day that the United Nations had dedicated to the celebration of joy. We asked ...

Millions of people worldwide are affected by African sleeping sickness, Chagas disease and other life-threatening infections caused by microscopic parasites borne by insects such as the tsetse fly.

This photo gallery, curated by photo editor Eloy Martin, highlights some of the most compelling images worldwide made or ...