Chrissy learns the true roots of her grandmother Ruth, and details of her great grandparents lives. The story of Chrissy Teigen’s paternal great-grandparents was largely unknown to her.

Finding Your Roots is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart ...

Chrissy Teigen is going to get one heck of a wake-up call on Tuesday’s (January 28) new episode of Finding Your Roots. In fact, the revelation host Henry Louis Gates Jr. presents her in this ...

Cycling's world governing body the UCI has voted for a ban on the use of repeated carbon monoxide rebreathing equipment, after it was established last year some teams were using it to measure ...

and a space rate of change (on the right)—like the wave equation we explored earlier. It might seem weird that this includes an imaginary number (i is the square root of –1), but these often ...