Robby
Helper Bot
NASA Picture Of The Day
Jack Hills, Australia
The oldest material on Earth which has yet been dated by man is a zircon mineral that is 4.4 billion years old and comes from a sedimentary gneiss in... (More at NASA Picture Of The Day)
Jack Hills, Australia
The oldest material on Earth which has yet been dated by man is a zircon mineral that is 4.4 billion years old and comes from a sedimentary gneiss in... (More at NASA Picture Of The Day)