Tech
A new solar-powered gel purifies water in a flash
The unusual, fruit-inspired structure of this material provides quick filtration that could satisfy people's daily water needs.
HS-ESS1-6
Apply scientific reasoning and evidence from ancient Earth materials, meteorites, and other planetary surfaces to construct an account of Earth's formation and early history.
More Stories in HS-ESS1-6
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PhysicsExplainer: Radioactive dating helps solve mysteries
Knowing the decay rate of radioactive elements can help date ancient fossils and other artifacts.
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EarthFossil-fuel use is confusing some carbon-dating measurements
Carbon-14 dating of recent artifacts will soon give scientists confusing results. That’s another price society pays for its reliance on fossil fuels.
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SpaceNASA is readying to send humans back to the moon
The launch of NASA's Artemis I is a huge step toward sending humans back to the moon and beyond.
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PlanetsMars might still be volcanically active, quakes there suggest
Seismic rumblings picked up by NASA’s InSight lander hint at molten rock moving deep below the planet’s fractured surface.
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SpaceMysteries about the universe abound, from its beginning to its end
Scientists have a good understanding of the laws that make our universe tick. But they still don’t quite know how it began — or will end.
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SpaceIt all started with the Big Bang — and then what happened?
Scientists explain what really puzzles them about how our universe became what it is today — and what its future may hold.
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PhysicsCosmic timeline: What’s happened since the Big Bang
Energy, mass and the cosmos' structure evolved a lot over the past 13.82 billion years — much of it within just the first second.
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TechNASA’s DART spacecraft crashed into an asteroid — on purpose
This mission could provide a blueprint for how to deflect a killer asteroid, if one is ever found headed for Earth.
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EarthNot one, but two asteroids might have ended the age of dinosaurs
A craterlike structure found off the coast of West Africa might have been formed by an asteroid that struck around the time dinosaurs went extinct.