Physics
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Materials Science‘Smart’ pasta morphs into fun shapes as it cooks
The trick to this shape-shifting are grooves cut into the raw pasta. Those grooves affect how the noodles swell as they cook.
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ChemistryScientists Say: Bond
In chemistry, this attachment between atoms forms because of the power of attraction. Chemical bonds make up every solid object on Earth.
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SpaceStars made of antimatter could lurk in our galaxy
Fourteen sources of gamma rays in our galaxy look like they could be antistars — celestial bodies made of antimatter.
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PlanetsThe pebbled path to planets
Small pebbles zipping through a sea of gas may give rise to mighty planets.
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Materials ScienceNew device gets power from 5G signals grabbed from the air
A new way to harvest electricity relies on a tiny array of antennas and a lens. Together, they collect and focus 5G signals coming from any direction.
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ChemistryScientists Say: Metal
Metals are substances that can be elements, alloys or compounds. They all conduct heat and electricity and can be formed into different shapes.
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PhysicsWhy big nuts always rise to the top
X-rays scans of a box of mixed nuts now reveal why large Brazil nuts rise to the top.
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Materials ScienceCopper ‘foam’ could be used as filters for COVID-19 masks
The lightweight new material could serve as a washable and recyclable, eco-friendly alternative for many current mask filters.
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SpaceRaindrops on alien worlds will obey Earth-like rules
Their size will be similar no matter what they’re made of or on which planet they fall, a new analysis finds.
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PhysicsStaying grounded in space requires artificial gravity
On TV, people in space walk around like they’re on Earth. How can science give real astronauts artificial gravity? Spin right round, baby.
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PlanetsScientists discover likely source of the moon’s faint yellow tail
These sodium atoms are part of the debris kicked up from the moon’s surface, mostly by micrometeorites, two new studies conclude.
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PhysicsLight levitation might help explore Earth’s ‘ignorosphere’
A toy called a light mill inspired researchers to invent a new way to fly. They’re using light to levitate small nanotube-coated discs.