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Material from the Earth’s core has been leaking into the mantle through activity that led to volcanic eruptions such as that helped form the Hawaiian islands. EPA/Bruce Omori/Paradise Helicopters

Earth’s core has been leaking for billions of years

New findings suggest the core has been leaking for the past 2.5 billion years, and that could help scientists understand how the core was formed.
The town of Schalkenmehren and its adjoining maar lake, Germany. Wikimedia Commons

Firepits of the Gods: ancient memories of maar volcanoes

A maar is a volcanic crater, often filled with water. New research highlights the similarities between oral stories around the world that shed light on the formation of these craters.
Scientists conduct research in Hawai'i Volcanoes National Park to practice for Mars landings. Shutterstock

Rehearsing for the Mars landings in Hawaii and Idaho

To prepare for future Mars missions, scientists collect samples and simulate communications conditions from volcano parks on Earth.
Lake Taupo, in the North Island of New Zealand, is a globally significant caldera of a supervolcano that formed following a massive eruption more than 20,000 years ago. from www.shutterstock.com

Explosive lies: how volcanoes can lie about their age, and what it means for us

New research shows that carbon dioxide in groundwater can affect the aging of volcanic eruptions. The findings could help predict future eruptions.
Luckily, monitoring systems at Hawaii’s Kilauea volcano allowed some warning before fissures opened up in 2018. United States Geological Survey/AAP

Would an eruption in Melbourne really match Hawaii’s volcanoes? Here’s the evidence

Melbourne lies at the eastern end of a volcanic province, but when’s it going to blow? Understanding the geology of Melbourne and comparing it to Hawaii is really helpful in calculating risk.
Earth experiences constant volcanic activity - here’s Indonesia’s Mount Anak Krakatau (Child of Krakatoa) photographed in July 2018. EPA/AAP

I’ve Always Wondered: Why are the volcanoes on Earth active, but the ones on Mars are not?

Compared to Earth, more “oomph” is required to bring magma to the surface of Mars, and this is probably why we haven’t seen any recent eruptions on the red planet.

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