articles tagged: early earth
when worlds collide: what happened the day the earth died
# space

when worlds collide: what happened the day the earth died

According to a new study, Earth's collision with a Mars-sized protoplanet 4.5 billion years ago didn't just create the Moon. It also gave us our oceans and helped life get started.

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.