Earth
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We summarize the week's scientific breakthroughs every Thursday.
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		EarthTwo of Greece’s most dangerous volcanoes share an underground link
Seismic and land deformation data show that Santorini and Kolumbo draw from the same magma source, complicating eruption forecasts.
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		EarthRecycled glass could help fend off coastal erosion
Sand made from recycled glass can be mixed with sediment to make a medium for plants to grow in. That can help with coastal restoration projects.
By Jude Coleman - 			
			
		PaleontologyCrystallized dino eggs provide a peek into the tumultuous Late Cretaceous
Definitively dating the age of a clutch of fossil dinosaur eggs at a famous site in China may let scientists link eggshell features to environmental shifts at the time.
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		AnimalsJust like humans, many animals get more aggressive in the heat
From salamanders to monkeys, many species get more violent at warmer temperatures — a trend that may shape their social structures as the world warms.
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		Planetary ScienceA Mars rock analysis tool proved its mettle on a chance find from Arizona
On Mars, the Perseverance rover found a spotted rock that could bear signs of ancient life. On Earth, a researcher used a lookalike for a dry run.
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		EnvironmentRiver turbulence can push toxic pollutants into the air
Levels of hydrogen sulfide gas soared near a raging section of the Tijuana River in San Diego, exposing residents to potentially harmful air pollution.
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		Earth20 years after Hurricane Katrina, is the U.S. better prepared?
Hurricane forecasts have improved since Katrina, but risks from climate change and budget cuts loom.
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		EarthUseful metals get unearthed in U.S. mines, then they’re tossed
Recovering these metals from mining by-products destined for waste sites could offset the need to import them from elsewhere or open new mines.
By Nikk Ogasa - 			
			
		EnvironmentA glacier burst, flooding Juneau. Again. This one broke records
A warming climate is behind growing floods of glacier meltwater in Alaska’s capital. Scientists say it’s the new normal.
By Douglas Fox - 			
			
		AnimalsWarm autumns could be a driver in monarch butterflies’ decline
In the lab, higher temperatures during fall migration led monarchs to break their reproductive pause, increasing their risk of death.
By Jude Coleman - 			Environment
See how aerosols loft through Earth’s sky
Aerosols, small particles in the atmosphere like salt and dust, may offset a third of human-caused climate warming, though their influence is fading.
By Nikk Ogasa - 			
			
		AnimalsThe mystery of melting sea stars may finally be solved
A bacterium called Vibrio pectenicida may be melting sea stars along North America’s Pacific coast.