Thanks in part to a fossil discovered by an eight-year-old, scientists have new insights into the mystery of why turtle shells evolved.
NASA's mission to Pluto shattered any misconceptions that scientists or the public might have had about the complexity of dwarf planets.
Google celebrates the 155th birthday of Nettie Stevens, the biologist who discovered that sex is determined by X and Y chromosomes, at a time when women are seeing their greatest scientific success in biology.
Researchers say K2-33b, the youngest fully formed exoplanet ever detected, could offer valuable insights into how planets are formed.
This year's solstice will be the brightest in decades, thanks to unusual timing of a Strawberry Moon.
Blue Origin launched and landed its unmanned New Shepard for the fourth time, but SpaceX promises to venture farther into space at a cheaper price.
'Bog butter' may have had semi-religious significance during the time in which it was buried.
It's unlikely to contain life, but the Jupiter-sized planet is the largest real-life version of Tatooine, the fictional world that boasts two suns from 'Star Wars.'