Scientists may have significantly underestimated how often the early Earth was struck by asteroids, new research suggests.
Long-lost ice core provides direct evidence that giant ice sheet melted off within the last million years and is highly vulnerable to a warming climate
An asteroid shower thought to have struck the moon and Earth 800 million years ago may have helped trigger Earth’s greatest ice ages, a new study finds.
Around 3 billion years ago, Earth may have been covered in water – a proverbial “waterworld” – without any continents separating the oceans.
Molten silicate might solve a long-standing magnetic mystery
Four thousand years ago, the last woolly mammoths quietly died on their final bastion – the isolated Wrangel Island, north of Russia in the frozen Arctic. Their demise was sudden, and strange; now, new evidence points to the mammoths themselves as partial agents of their own demise.
Yarrabubba Crater was blasted out by an asteroid or comet about 2.23 billion years ago.
A new study examines how early animals endured the worst ice age in Earth’s history, and why it might have set the stage for our existence.
New research explains how Earth became a habitable planet
Earth’s ice is melting at a rapid clip today. But some scientists think that during several ancient episodes, the planet plunged into a deep freeze known as “Snowball Earth,” when ice sheets grew to cover almost the entire planet.
