NASA astronomer Michelle Thaller makes the case that quantum entanglement may be the underlying fabric from which spacetime itself emerges. 

Jim Al-Khalili explains how the past and future are more fluid than we may think.

Thanks to modern tech, Earth is now considered a ‘detectable’ planet. Astrophysicist Sara Seager explains how this idea can lead us to discovering life elsewhere in our universe.

Military satellite research brought us GPS. Astronomers influenced medical imaging tech. What would be invented after we discover alien life? Professor Sara Seager explains the consequences of such a groundbreaking discovery.

Everything ever seen — every star, mountain, and face — makes up less than 5 percent of the universe. Astrophysicist Janna Levin reminds us that the rest — dark matter and dark energy — is invisible, mysterious, and everywhere. We are the luminous exception in a universe of darkness.

“Deep down the natural endpoint of this whole goal of looking for planets is to answer the question: are we alone?”

“Could black holes be the key to a quantum theory of gravity, a deeper theory of how reality, of how space and time works?”

"It's a very, very beautiful calculation, but it's the best example I know of the relationship between these rather abstract quantities perhaps and something that you can look at in a telescope."

“We don't have enough knowledge to precisely calculate what is going to happen, and so we assign probabilities to it, which reflects our ignorance of the situation.”

"We are all in orbit around the center of the Milky Way galaxy. How big is this collection of stars? Somewhere between 200 and 400 billion suns in the Milky Way galaxy, about 100,000 light years across."

"Asking the question of, "Where did the entire universe come from?" is no longer a question for poets and theologians and philosophers. This is a question for scientists, and we have some amazing scientific answers to this question."

"Asking the question of, where did the entire universe come from, is no longer a question for poets and theologians and philosophers. This is a question for scientists, and we have some amazing scientific answers to this question that have defied even the wildest of our expectations."

From nothing to everything: How zero changed our understanding of the universe, forever.

What drives the universe's expansion? Chemist Lee Cronin explains the theories linking time, space, and selection, providing a fresh perspective on this cosmic mystery.

Don’t fall into the determinism trap. Everything is, in fact, random, says chemist Lee Cronin:

“I study the mineral kingdom — and its secrets could lead us to alien life.”

“We could be wrong. But if we are right, it’s profoundly important.” Leading mineralogist Dr. Robert Hazen on the missing law of nature that could explain why life emerges.

Nobel Prize winning physicist Frank Wilczek reflects on Einstein’s greatest contribution.

Physicist Sean Carroll on entropy, complexity, and the origins of life:

Is information intrinsic in our universe? NASA’s Michelle Thaller explains.

Kmele talked with a planetary scientist, a physicist, and a futurist, to understand how visionaries across disciplines are thinking about the future of our planet and humankind.

Our host Kmele went inside Fermilab, America’s premiere particle accelerator facility, to find out how the smallest particles in the universe can teach us about its biggest mysteries.

When black holes disappear, what happens to the stuff that fell in? Physicist Brian Cox explains.

If Einstein couldn’t solve the theory of everything, could anyone? Physicist Michio Kaku explains what it would take.

Gravity defies quantum mechanics. What does that mean for a theory of everything?

Ever wonder what would happen if we got sucked into a black hole? Turns out we could live in it for a while — if it was big enough.

Left–Right, Back–Forth, Up–Down. What’s the fourth dimension?

How the Big Bang gave us time, explained by theoretical physicist.

How did complex systems emerge from chaos? Physicist Sean Carroll explains.

Everything you ever wanted to know about the Universe, explained by physicist Sean Carroll.