Archives: César Tomé

Pythons can expand and retract the size of their organs as they feast and fast, write Carl Zimmer and Wes Fraser. Studying this may provide humans with another way to fight disease


A year in space can trigger many changes in the human body — from our heads down to our genes — but most of them don’t persist indefinitely.

Climate change on Saturn’s moon Titan may have caused liquid nitrogen pockets to explode, forming craters that filled with liquid hydrocarbons.