Volcanoes are born and die – and then grow again on their own remains. The decay of a volcano in particular is often accompanied by catastrophic consequences, as was the most recent case for Anak Krakatau in 2018.
The flank of the volcano had…
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Climate Changed in Steps in the Past
An international study published in Science significantly improves the potential for understanding how the Earth’s climate system evolved over the past 66 million years.
The work reveals that the Earth system shifted abruptly between 4 distinct…
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How Cold Was the Ice Age? Researchers Now Know
A University of Arizona-led team has nailed down the temperature of the last ice age – the Last Glacial Maximum of 20,000 years ago – to about 46 degrees Fahrenheit.
Their findings allow climate scientists to better understand the relationship…
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Meteorite Strikes May Create Unexpected Form of Silica
When a meteorite hurtles through the atmosphere and crashes to Earth, how does its violent impact alter the minerals found at the landing site?
What can the short-lived chemical phases created by these extreme impacts teach scientists about the…
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Historical Climate Changes Occurred Simultaneously in Several Parts of the World
A new study published by researchers from the University of Copenhagen and partner institutions has proven that repeated and abrupt climate changes during the last ice age occurred simultaneously in South America, Southeast Asia, Europe and…
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Spinning Black Hole Powers Jet by Magnetic Flux
Black holes are at the center of almost all galaxies that have been studied so far. They have an unimaginably large mass and therefore attract matter, gas and even light.
But they can also emit matter in the form of plasma jets – a kind of…
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The Age of the Earth’s Inner Core Revised
By creating conditions akin to the center of the Earth inside a laboratory chamber, researchers have improved the estimate of the age of our planet’s solid inner core, putting it at 1 billion to 1.3 billion years old.
The results place the core…
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Research Links Southeast Asia Megadrought to Drying in Africa
Physical evidence found in caves in Laos helps tell a story about a connection between the end of the Green Sahara, when once heavily vegetated Northern Africa became a hyper-arid landscape, and a previously unknown megadrought that crippled…
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Sustained Planetwide Storms May Have Filled Lakes and Rivers on Ancient Mars
A new study from The University of Texas at Austin is helping scientists piece together the ancient climate of Mars by revealing how much rainfall and snowmelt filled its lake beds and river valleys 3.5 billion to 4 billion years ago.
The study…
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Fossil Leaves Show High Atmospheric Carbon Spurred Ancient ‘Global Greening’
Scientists studying leaves from a 23-million-year-old forest have for the first time linked high levels of atmospheric carbon dioxide with increased plant growth, and the hot climate off the time.
The finding adds to the understanding of how…
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