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LifeHow horses lost their toes
Fossils reveal that as horses evolved to have fewer toes, they also got stronger and faster.
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PhysicsScientists create the most cubic form of ice crystals yet
Ice has taken on a strange structure, with its water molecules arranged in nearly perfect cubes.
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Planetary Science‘Death Dive to Saturn’ celebrates the Cassini probe’s accomplishments
A new documentary, “Death Dive to Saturn,” takes a look back at the Cassini spacecraft’s 13 years at Saturn and what to expect from its final days.
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AstronomyRumors swirl that LIGO snagged gravitational waves from a neutron star collision
Telescopes seem to be following up on a potential gravitational wave sighting.
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GeneticsIf you’re 35 or younger, your genes can predict whether the flu vaccine will work
A set of nine genes predicted an effective response to the flu vaccine in young people, no matter the strains.
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CosmologyMap reveals the invisible universe of dark matter
The Dark Energy Survey reports a new tally of the dark universe.
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AnthropologyNitty-gritty of Homo naledi’s diet revealed in its teeth
Ancient humanlike species ate something that damaged its teeth.
By Bruce Bower -
Life‘Darwin’s Backyard’ chronicles naturalist’s homespun experiments
In the new book Darwin’s Backyard, a biologist explores Charles Darwin’s family life, as well as four decades’ worth of his at-home experiments.
By Sid Perkins -
Tech50 years ago, NASA whipped up astronaut waste into rocket fuel
In 1967, scientists found a way to turn human waste into rocket fuel.
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TechMeet the Bobcat Nanowagon, the world’s smallest monster truck
Chemists are scratching their heads over the wreckage of minuscule monster trucks.
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Science & SocietyPatience is one virtue scientists must embrace
Acting Editor in Chief Elizabeth Quill discusses how being patient isn't always easy in scientific work.
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AstronomyInquiries about the moon’s twilight zone, and more reader feedback
Readers had questions about the moon's tidal locking, quantum communication, microneedles and more.