When did the very first stars form in the universe? How can we even find such stars in a universe that has over a trillion-trillion stars? This is a fascinating and tough puzzle. But astronomers have started to some of the pieces together and now they think that the first stars may have formed after only a few hundred million years after the Big Bang. Please join astrophysicist Salman Hameed in figuring out how we know about the very stars in the universe. 
For a video of this episode, please follow this link: https://www.youtube.com/watch?v=yBgJTmX9UE8