All Stories
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ChemistryCooking up superhard diamonds
Popping diamonds into a high-pressure oven can make these hard minerals even harder.
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ComputingComputers with Attitude
Researchers are trying to design computers that can recognize how you're feeling and react to help you out.
By Emily Sohn -
MathLosing with Heads or Tails
Flipping a coin may not be the fairest way to make a choice.
By Emily Sohn -
EnvironmentMissing tigers in India
Tigers are among the most endangered animals on Earth.
By Emily Sohn -
Health & MedicineWalking to exercise the brain
Light exercise can help elderly people keep their brains in shape.
By Emily Sohn -
EnvironmentNanosponges soak up pollutants
Tiny, specially designed particles draw pollutants out of contaminated soil.
By Emily Sohn -
Health & MedicineBuilding a food pyramid
Experts are trying to work out new rules on which foods to eat and which ones to avoid.
By Emily Sohn -
FossilsWinged insects may go way back
A fossil's mouthparts hint that winged insects lived on Earth 400 million years ago.
By Emily Sohn -
PhysicsA sweet advance in candy packing
Objects shaped like M&Ms can snuggle together more tightly than spheres do.
By Emily Sohn -
BrainReading Verbs Revs Up Your Brain
Silently reading the word "dance" gets your brain to react as though you're really dancing.
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EarthEarth’s early oxygen boost
The steady buildup of oxygen in Earth's atmosphere may have helped life forms become more complex.
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SpaceStrange Universe: The Stuff of Darkness
Figuring out what's hidden in outer space between the visible stars and galaxies isn't easy.
By Emily Sohn