Earth's Systems
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ClimateHeat waves appear more life-threatening than scientists once thought
This is bad news as a warming planet leads to growing numbers of excessive heat waves — and millions more people facing potentially deadly temperatures.
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PhysicsScientists used lasers to make ‘smoke rings’ of light
Physicists had a bright idea: Make light into swirling, ring-shaped vortices, similar to smoke rings or bubble rings.
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EarthUplifting Antarctic shores point to accelerating loss of glaciers
It appears the Pine Island and “Doomsday” Thwaites glaciers are losing ice — and shrinking faster — than at any time in the past 5,500 years.
By Douglas Fox -
ChemistryLet’s learn about diamond
Diamond is born under extreme heat and pressure inside Earth and elsewhere in the universe.
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EarthScientists Say: Fault
A fault is a crack in Earth’s crust where pieces of rock scrape past each other.
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EarthTiny gemstones show when Earth’s crust first started moving
Chemical hints observed in zircons suggest when the important process of plate tectonics first took off.
By Nikk Ogasa -
PhysicsGravitational waves ‘kicked’ a newborn black hole across space
Two black holes merged into one, and then sped off at around 5 million kilometers (3.1 million miles) per hour.
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EarthScientists Say: Atmosphere
An atmosphere is an envelope of gas around a planet, dwarf planet or moon.
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Science & SocietyThis sun-powered system delivers energy as it pulls water from the air
The device not only produces electricity but also harvests water for drinking or crops. It could be especially useful in remote and dry parts of the world.
By Laura Allen -
ClimateA bold plan to save the planet turns carbon dioxide into stone
Scientists hope that capturing carbon dioxide this way will limit both further warming of our planet and an escalation of extreme weather events.
By Douglas Fox -
EarthThe Alps’ Matterhorn shows how much even big mountains sway
Such mountain sway data can help planners map high-risk zones for peaks, bridges or any large structures.
By Peg Lopata -
EarthLet’s learn about Earth’s secret stash of underground water
Groundwater provides drinking water to billions of people and is used to water crops worldwide.