All Stories
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LifeLet’s learn about alligators and crocodiles
Alligators and crocodiles seem similar — but they live in different places and look different, too.
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ArchaeologyStonehenge enhanced voices and music within the stone ring
Scientists built a 'Stonehenge Lego' model in a sound chamber to study how sound would have behaved in the ancient stone circle.
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ChemistryScientists Say: Plastic
Plastics are made of long polymer chains and can take on many shapes. Unfortunately, they stick around for a long time.
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SpaceStrange but true: White dwarfs shrink as they gain mass
Telescope observations of thousands of these stars now confirm a decades-old theory on how their masses relate to their waistline.
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AnimalsOne tiny sea parasite survives 200 times atmospheric pressure
Known as the seal louse, this tiny insect can survive deep oceanic dives on its mobile home, a marine mammal.
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A dirty and growing problem: Too few toilets
As the famous book says, everybody poops. That’s 7.8 billion people, worldwide. For the 2.4 billion with no toilet, the process can be complicated.
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PhysicsThe exotic ‘atom’ positronium surprises scientists
New measurements of a weird but simple atom, one without a nucleus, suggest it may have unexpected properties. Scientists find this troubling.
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AnimalsWhale blowholes don’t keep out seawater
Whales’ blowholes aren’t as protective as scientists had thought. They not only can let in water but also pollutants.
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LifeScientists Say: Amphibian
Amphibians are ectotherms that live dual lives — they start off in water, breathing with gills, and end up breathing air with lungs.
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ChemistryNew solution for carbon dioxide: Turn it into ‘green’ fuel
Chemists have created a new way to convert carbon dioxide into ethanol. It might one day help remove excess CO2 — a greenhouse gas — from the air.