Surprise! There's a quadrillion tons of diamonds lying beneath your feet

Finding a diamond on the ground would make anyone's day. Depending on its quality, you might be able to sell it for a nice little payday. Now imagine finding a quadrillion tons of diamonds, only you'll never be able to actually reach them. That's exactly what researchers from MIT have accomplished with the help of seismic waves flowing through the Earth. Using what they already know about how seismic waves travel through different types of material, the researchers took a close look at seismogra...