Previous research pointed to climate change as the main driver of permafrost explosions in Siberia, but a new study offers a more nuanced explanation.
A rocky stretch in Western Australia's Pilbara, near Earth's earliest-confirmed lifeforms, was hit by a meteorite about 3.5 billion years ago.
The rover trekked nearly 2,000 feet to get out of the crater, where it will explore a 4-billion-year-old environment.
Flashes on our natural satellite's surface suggest the annual Geminids meteor shower isn't just making an impact on Earth.
The 5.3-mile-wide crater is now confirmed to be 66 million years old, suggesting that the impact of at least two giant space rocks preceded the mass extinction of dinosaurs.
