Cells within cells: An extraordinary claim with extraordinary evidence
Learn how an unlikely idea — that the merging of cells played a prominent role in evolution — overcame strong initial resistance within the scientific community and came to be an accepted part of evolutionary theory.
Asteroids and dinosaurs
Learn more about how science works as you follow scientists on a journey of discovery toward solving the mystery of the dinosaur extinction.
The structure of DNA: Cooperation and competition
Learn how the information shared among an unlikely group of researchers led to a key biological discovery — solving the molecular structure of DNA.
Cold fusion: A case study for scientific behavior
Learn what happened when two chemists made a foray into physics, alternative energy sources, and the public eye — but neglected to follow the guidelines for good scientific behavior. Find out how science is affected by and overcomes such negligence.
Ozone depletion: Uncovering the hidden hazard of hairspray
Follow the scientific journey of Mario Molina, Sherwood Rowland, and other scientists as they study atmospheric chemistry and uncover environmental risks posed by common household chemicals.