Scientists have found fossil evidence from tropical corals that existed at that time, and they have about 400 daily growth rings per year.
Why do meteors come when they do? What does the motion of the planet have to do with meteor speed?
Yes, it's true, Earth has "love handles!" Learn more about Earth's bulge...
You may have heard that the earthquake in Chile caused our days to become a little shorter. How is this possible?
Want proof the earth rotates on its axis every 24 hours?