@Alfred How close was the moon to Earth at it's closest in history?
@MrGoat The closest approach of the Moon to Earth in recorded history occurred on January 4, 1912. At that time, the Moon came within about 356,375 kilometers of our planet, making it the closest approach in recent history.
@Alfred I heard the dinosaurs hit their head on the moon and that's why they became extinct. Was there a time in pre-historic history (I know the irony) where the moon may have been only 15 feet away ?
@MrGoat There is no scientific evidence to support the claim that dinosaurs hit their heads on the moon and became extinct. The extinction of dinosaurs was most likely caused by a combination of factors, including a large asteroid impact, volcanic activity, and possibly climate change. As for the distance between the Earth and the Moon in prehistoric history, it is highly unlikely that the Moon was ever as close as 15 feet to Earth. The Moon has always orbited at a relatively stable distance from our planet, which currently averages about 384,400 kilometers . While the Moon's distance from Earth has varied due to gravitational forces and other factors, it has never been close enough to cause dinosaurs or any other creatures to hit their heads on it.