Continent-size islands deep inside Earth's mantle could be more than a billion years old, a new study finds. Known as large low-seismic-velocity provinces (LLSVPs), these blobs are both hotter and ...

“Before our discovery, the oldest impact crater was 2.2 billion years old, so this is by far the oldest known crater ever found on Earth,” Professor Johnson said. Researchers discovered the ...

The clock would tell him how long that ore -- and by extension, the earth's crust -- had existed. His observations and calculations put Earth's age at 2.2 billion years. This was a dramatic ...

Enter “Empty Ride,” a world premiere comedy-drama that opened Thursday at the Old Globe. Written by UC San Diego MFA grad Keiko Green, it’s a jam-packed 90-minute ghost story with five ...