Related topics: earth · nasa · orbit · solar system · mars

Why does Mercury have such a big iron core? Magnetism!

A new study disputes the prevailing hypothesis on why Mercury has a big core relative to its mantle (the layer between a planet's core and crust). For decades, scientists argued that hit-and-run collisions with other bodies ...

To understand the future of hurricanes, look to the past

The historic 2020 hurricane season, with its record-breaking 30 tropical storms and hurricanes, left in its wake hundreds of deaths in the United States, tens of billions of dollars in damages, and one important question: ...

Rise of the diatoms—a new timeline

Diatoms—tiny phytoplankton that are responsible for a fifth of all energy converted into matter by plants—may have become important much earlier in the development of Earth's ocean ecosystems and carbon cycle than previously ...

Research finds 'fool's gold' not so foolish after all

Curtin University research has found tiny amounts of gold can be trapped inside pyrite, commonly known as "fool's gold," which would make it much more valuable than its name suggests.

Earth's history sends climate warning

A new study of historical carbon dioxide levels stresses urgent action is needed to avoid prehistoric levels of climate change.

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