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How Paleolithic artists used fire to set the world’s oldest art in motion.

The meaning of light through history in science, religion, philosophy, and culture.

Since the universe formed, photons have affected everything.

In unseen worlds, science invariably crosses paths with fantasy.

Technology has fed our addiction to light, and might help us end it.

Hoarding shows us at our best, and worst.

The ecological fate of our home.

Ken Kraaijeveld unveils ancient secrets of seduction from the animal kingdom.

Peculiar shapes were the key to realizing that galaxies merge.

How a “speed gene” test is stirring up horse racing and athletics.

Taking lessons from the rise and fall of divinity in online games.

The unlikely heroes that made starlight possible.