Listen to Episode 3 here
Travel time curve poster from IRIS (group of seismology organizations) the colored dots are arrivals time is on the vertical axis and degree distance is on the horizontal axis.
old ass rock article
pristine mantle from earths formation!
BBC and MSNBC articles
The secret to life may be as simple as what happens between the sheets — mica sheets
detailed notes will be available in the next few days so check back!