Earth lags behind leaders in cosmic age race.(The Dallas Morning News) From: Knight Ridder/Tribune News Service | Date: March 19, 2001| Author: Siegfried, Tom | COPYRIGHT 2001 Knight-Ridder/Tribune News Service. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group.Copyright information

If you're worried about being old, think of the age of the Earth.

It's billions and billions of years old _ about 4.6 billion, to be more precise _ making it older than Bob Hope, Ronald Reagan and Strom Thurmond put together.

But compared with other planets, the Earth is more in the age range of Leonardo DiCaprio and Britney Spears. The universe has been around a lot longer than the Earth has _ providing plenty of opportunity for previous planetary births and...