Tech
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TechHow NASA’s portable atomic clock could revolutionize space travel
An atomic clock designed to enable self-driving spaceships and GPS-like navigation on other planets is about to take a yearlong test flight.
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LifeThis body-on-a-chip mimics how organs and cancer cells react to drugs
The multiorgan system could help test new and existing drugs for effectiveness and unwanted side effects.
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Particle PhysicsDiamond detectors could aid the search for dark matter
Elusive dark matter particles could be spotted when they slam into electrons or atomic nuclei within diamond, scientists say.
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Astronomy50 years ago, scientists wanted to build solar panels on the moon
In 1969, scientists proposed building solar panels on the moon to convert the sun’s energy into electricity that can be used on Earth.
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PhysicsThis tabletop device turns the quantum definition of a kilogram into a real mass
The mini Kibble balance will measure 10 grams to an accuracy of a few ten-thousandths of a percent.
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AstronomyQuestions about solar storms, slingshot spiders and more reader feedback
Readers had questions about solar storms, a robotic gripper, slingshot spiders and more.
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PhysicsA new optical atomic clock’s heart is as small as a coffee bean
Optical atomic clocks are extremely good at keeping time, and they’re on their way to becoming pocket watches.
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PhysicsSpherical flames in space could solve the mystery of soot-free fires
In microgravity, flames are sphere-shaped. Tests of fire on the International Space Station are helping show how gases flow within flames.
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Artificial IntelligenceAI can learn real-world skills from playing StarCraft and Minecraft
By playing StarCraft and Minecraft, artificial intelligence is learning how to collaborate and adapt.
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Artificial IntelligenceA new AI acquired humanlike ‘number sense’ on its own
A new artificial intelligence seems to share our intuitive ability to estimate numbers at a glance.
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EarthThe search for new geologic sources of lithium could power a clean future
Futuristic clean-energy visions of electric vehicles are driving the hunt for lithium.
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Science & SocietyFacebook data show how many people left Puerto Rico after Hurricane Maria
Conventional surveys can’t track migration after natural disasters in real time. But Facebook data may provide a crude estimate of those who flee.