Extraterrestrial stone brings first supernova clues to Earth

New chemistry "forensics" indicate that the stone named Hypatia from the Egyptian desert could be the first tangible evidence found on Earth of a supernova type Ia explosion. These rare supernovas are some of the most energetic ...

How the Earth's core is like a multi-layered cake

How is our Earth's inner core like a cake? According to Professor Hrvoje Tkalčić and Sheng Wang from The Australian National University (ANU), there are more similarities than you might think.

Volcanoes acted as a safety valve for Earth's long-term climate

Scientists at the University of Southampton have discovered that extensive chains of volcanoes have been responsible for both emitting and then removing atmospheric carbon dioxide (CO2) over geological time. This stabilized ...

Like a molten pancake: A new model for shield volcano eruption

There are some large shield volcanoes in the world's oceans where the lava is usually not ejected from the crater in violent explosions, but flows slowly out of the ground from long fissures. In the recent eruption of the ...

Effects of past ice ages more widespread than previously thought

Cold temperatures, prevalent during glacial periods, had a significant impact on past and modern unglaciated landscapes across much of North America, according to a recent study by University of Arkansas geologist Jill A. ...

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