Heliconian butterflies choose mates with similar wing patterns. Their genes make them do it.
It's taken scientists a long time to figure out what amber is made of, and what we can learn from it.
Since the 1950s, scientists have been proposing supernovae as catalysts for mass extinctions. But can it be proven?
Efforts to fill the periodic table raise questions of special relativity that “strike at the very heart of chemistry as a discipline.”
Forty-one years after its launch, Voyager 2 has officially crossed out of the solar system and into interstellar space. What has it discovered along the way?
The Burgess Shale is a huge deposit of unique fossils that reveals records of the middle Cambrian, a vital period in evolutionary history.
Everything scientists think they know about the interior of Mars is based on indirect observations. NASA's new InSight Lander aims to change that.
Citizen science involves using large numbers of volunteers to collect data for scientific research. But does it result in usable data?
Dr. Ruth Gates worked tirelessly to conserve coral reefs, promoting a controversial idea called assisted evolution.
Japan’s space agency has landed rovers on Asteroid Ryugu. The photos and samples from the mission will reveal a lot about asteroids.