articles tagged: early earth
did asteroids and comets help create our continents?
# science

did asteroids and comets help create our continents?

Asteroids and comet brought our planet water and the chemical precursors for life. But could they have also given rise to our continents and help set plate tectonics in motion?

oldest earth rock found in lunar exile
# space

oldest earth rock found in lunar exile

Scientists think they found a time capsule from Earth’s earliest days buried just under the Moon’s surface for the last 4.1 billion years.