Year in Review
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Genetics
News of the first gene-edited babies ignited a firestorm
A researcher in China announced he created two babies using CRISPR. Many scientists questioned the study’s ethics and medical necessity.
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Genetics
Crime solvers embraced genetic genealogy
DNA searches of a public genealogy database are closing cases and opening privacy concerns.
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Particle Physics
Neutrino discovery launched a new type of astronomy
Particles associated with a blazar kick-start the field of neutrino astronomy.
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Earth
Greenland crater renewed the debate over an ancient climate mystery
Scientists disagree on what a possible crater found under Greenland’s ice means for the Younger Dryas impact hypothesis.
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Animals
Humans wiped out mosquitoes (in one small lab test)
An early lab test of exterminating a much-hated mosquito raises hopes, but is it really such a great idea?
By Susan Milius -
Health & Medicine
Drinking studies muddied the waters around the safety of alcohol use
Studies claiming that alcohol in even small amounts is dangerous weren’t designed to address risks of moderate drinking.
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Planetary Science
A buried lake on Mars excited and baffled scientists
Planetary scientists are still trying to explain how a lake could have formed beneath a kilometer and a half of Martian ice.
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Neuroscience
Zapping the spinal cord helped paralyzed people learn to move again
A handful of people paralyzed from spinal cord injuries have learned to walk again.
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Anthropology
Human smarts got a surprisingly early start
Human ingenuity began on treks across Asia and in fluctuating African habitats.
By Bruce Bower -
Science & Society
Watch our most-viewed videos of 2017
Cassini’s demise, cuttlefish and the Curiosity rover topped our list of most popular videos of 2017.
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Animals
2017 delivered amazing biology finds from organisms large and small
From giant African elephants to tiny tardigrades, scientists discovered some surprising biology this year.
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Planetary Science
Here’s what you might have missed in space this year
Missions to Jupiter and Saturn made big headlines, and 2017 also saw exciting updates from missions of years past.