Researchers used a growing body of detail about planets outside of the solar system to estimate that the Earth's scrappiest life will hold on for 1.75 to 3.25 billion years.
Click here to read Bob's blog.
Magellan reaches the Pacific, William Shakespeare gets hitched, the Grand…
No email address was supplied by
To complete your registration on this site, please supply an address.
Please confirm or modify the email address to which you will have subscription offers sent.
For a more personalized experience, please supply the following optional information.