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You think you understand gravity—it's just Earth pulling you down, right? Wrong. Step on a scale. You see your weight. But what ...

Do you think the desk in front of you is a solid, continuous block of matter? You aren't actually touching it. It isn't what your brain ...

Richard Feynman, Nobel Prize-winning physicist and legendary teacher, takes on the biggest question of all: Is there a God?

What does it actually mean for light to "travel"? In this video, we break down one of the most fascinating and misunderstood topics ...

Remi Soummer (STScI)

Your wall swallows every photon from your kitchen lamp — every single one. But the radio signal from the next room? Passes ...

Is a tree really made from the soil beneath it? It looks obvious. Roots dig into the ground. Trunks rise from the earth. But what if ...

When people say “death is the end,” physics tells a quieter — and more nuanced — story. The atoms that make up your body ...

A mature oak tree weighs around 10000 pounds. But where did all that mass actually come from? Not the soil. Not the water.

How was the early universe different than today? What can the oldest light in the universe tell us about the early universe? Join us ...

What Is Time, Really? | Richard Feynman Time feels constant. Predictable. Always moving forward. But what if time is not what ...

An adult oak tree weighs about 4500 kilograms. Where did all that mass come from? Not from the ground. Nor from water.

Richard Feynman Destroys The Biggest Myth About ELECTRICITY Richard Feynman (1918–1988) was one of the most ...

You stare at a screen for hours a day. But have you ever stopped and wondered what that screen is actually doing to the light ...

A mature oak tree weighs around 10000 pounds. Where did all that mass come from? Not the soil. Not the water. Not the minerals.

Do you think the light hitting your face right now traveled for eight minutes to reach you? It isn't. While your watch says the journey ...

Saraswathi Kalyani Subramanian (University of Arizona)

The universe is filled with violent explosions, massive stars, and galaxies colliding at unimaginable speeds. So why is it ...

J. Kent Wallace (NASA JPL)

Why Everything Is Not Real | Richard Feynman What if the reality you trust every single day… isn't as solid as you think?