Name: Tammy L.
Status: Other
Age: N/A
Location: N/A
Country: N/A
Date: N/A
Question:
How many years has there been a Moon and an Earth?
Replies:
The Earth has been around for between 4.5 and 4.6 billion years, according
to the most recent estimates I am aware of. The Moon is probably no more
than a few hundred million years younger than the Earth. This is actually a
substantial fraction of the age of the whole universe (between 9 and 15
billion years) - so the Earth is pretty old by just about any standard.
NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators, sponsored and operated by Argonne National Laboratory's Educational Programs, Andrew Skipor, Ph.D., Head of Educational Programs.
