Who Was Alexander von Humboldt?
Remembering the work of the great naturalist Alexander von Humboldt, on the 250th anniversary of his birth.
An Epidemic of Retractions
Nicolas Chevassus-au-Louis's new book, Fraud in the Lab, offers some tough love for the scientific community.
An Early Review of On the Origin of Species
"Darwin openly and almost scornfully repudiates the whole doctrine of Final Causes. He finds no indication of design or purpose anywhere..."
Will Graphene Deliver on Its Promise?
Strong, stable, and conductive at one atom thick, graphene has amazing potential in a variety of applications. But is hype all the material has?
Volcanic Ecosystems in the Deep Ocean
Undersea volcanoes, like Hawaii's Kīlauea, foster diverse ecosystems in an environment far from sunlight—and as acidic as lemon juice.
Aeroplankton: The Life in the Air We Breathe
Just as the ocean is full of plankton, the air we breathe teems with microorganisms.
The Souls of Magnets
Lodestones are dull, lumpy, and slate-gray, but their “magnetic intelligence” made them fabulously expensive.
The Meaning of Methane on Mars
Curiosity rover's recent report of methane on Mars isn't the first time the gas has been indicated. Does it necessarily mean that Mars harbors life?
Should the Moon Landing Site Be a National Historic Landmark?
Some archaeologists argue it’s essential to preserve the history of lunar exploration. But would it represent a claim of U.S. sovereignty over the moon?