The Big Bang theory changed how we understand our universe. But who do we have to thank for it? On a new episode of ID the Future, I conclude my conversation with esteemed cosmologist Jean-Pierre Luminet, who sets the record straight on the real heroes of the Big Bang theory with his new book The Big Bang Revolutionaries, available now from Discovery Institute Press.

In Part 2, Dr. Luminet begins by shedding more light on Georges Lemaître, the Big Bang theory’s chief architect. Lemaître demonstrated a rare humility, concerned more with pursuing an accurate understanding of the universe than with who got credit for the theory. Luminet explains why it took so long for scientists to accept Lemaître’s theory over other competing theories of the universe’s origins. Luminet also shares insights into two other architects of the Big Bang theory: Russian physicist Alexander Friedmann and Russian-American physicist and cosmologist George Gamow.

Luminet concludes by explaining the state of relativistic cosmology today. “We can now say really that we have entered an era of high precision experimental cosmology,” says Luminet, allowing us to fix the fundamental parameters of the universe to within a few percent. But a number of questions still remain about the nature of dark matter and dark energy. Meanwhile, the Big Bang theory has been in the news lately. Do Lemaître’s core ideas about the origin and expansion of the universe continue to stand up to scrutiny? Tune in to hear Luminet’s answer! Download the podcast or listen to it here.