The moon's evolutionary history is divided into three distinct phases based on the temporal interplay of exogenic and endogenic processes in altering the moon. These phases are defined as Eon-level ...

The field’s governing body ratified a vote by scientists on the contentious issue, ending a long effort to update the timeline of Earth’s history. By Raymond Zhong The highest governing body in ...

3. 25 Facts About Geologic Time That Made Our Brains Hurt 4. How Do We Know? A Glimpse into Geologic Sleuthing 5. Our Fleeting Moment in Deep Time 6. Frequently Asked Questions What if we told you ...