
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.
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The unusual, fruit-inspired structure of this material provides quick filtration that could satisfy people's daily water needs.
Knowing the decay rate of radioactive elements can help date ancient fossils and other artifacts.
Carbon-14 dating of recent artifacts will soon give scientists confusing results. That’s another price society pays for its reliance on fossil fuels.
The launch of NASA's Artemis I is a huge step toward sending humans back to the moon and beyond.
Seismic rumblings picked up by NASA’s InSight lander hint at molten rock moving deep below the planet’s fractured surface.
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.
Scientists explain what really puzzles them about how our universe became what it is today — and what its future may hold.
Energy, mass and the cosmos' structure evolved a lot over the past 13.82 billion years — much of it within just the first second.
This mission could provide a blueprint for how to deflect a killer asteroid, if one is ever found headed for Earth.
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.