All Stories
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SpaceGhost particles paint a new picture of the Milky Way
Scientists tracked neutrinos from space to create a new map of our galaxy. It’s the first image of the Milky Way to be made without light.
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FossilsThis bizarre ancient predator snagged soft prey
Scientists are rethinking how this extinct creature used the spiky limbs sticking out of its face to hunt.
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SpaceScientists Say: Pulsar
These rapidly spinning dead stars send beams of radio waves into space like cosmic lighthouses.
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SpaceNewfound gravitational waves may be from the biggest black holes in the universe
Observations of dead stars hint that ripples in spacetime — ripples light-years long — roll through our universe.
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AnimalsBottlenose dolphin moms baby talk when their calves are near
Around their babies, bottlenose dolphin moms whistle with higher pitches. It’s similar to human parents speaking in baby talk.
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AnimalsExplainer: What is metamorphosis?
Insects, amphibians and some fish undergo metamorphosis. But they’re not the only ones.
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AnimalsMegalodons may have become megahunters by running hot
O. megalodon sharks were warm-blooded mega-predators. But when food sources dwindled, colder-blooded sharks may have had an evolutionary edge.
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EarthA volcanic eruption sparked the highest lightning ever seen
The eruption plume spawned lightning that started 20 to 30 kilometers (some 12 to 19 miles) above sea level.
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EcosystemsScientists Say: Predator and Prey
Ecological relationships between predators and their prey drive the evolution of plants, animals and microbes.
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Health & MedicineSwollen chambers in astronauts’ brains may take 3 years to recover
How long astronauts spend in space and the time since their last mission affects how much fluid-filled chambers in their brains expand while in space.
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PlantsA single particle of light can kick off photosynthesis
In a new experiment with bacteria, a lone photon sparked the process of turning light to chemical energy.
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AnimalsNorthern elephant seals snooze only two hours a day at sea
These marine mammals sleep only minutes at a time on months-long trips at sea.