How was our solar system and Earth formed? Sal hypothesizes that a Supernova was most likely the catalyst that spawned our sun and, consequently, our solar system. He thoroughly explains the formation of the moon and the Earth using a...

[Free Registration/Login may be required to access all resource tools.] View a National Geographic video featuring the way the Earth was formed. [1 hr. 30 min.]

Geologist Damon Teagle talks about what boreholes may reveal about the Earth's formation. [16 mins. 39]