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Music of Sleep and Dreams

Sleep and music share a strange, elusive magic—both shape our...

A black alarm clock with headphones on a blue background

The Shape of Knots: From DNA to Shoestrings and Solar Flares

Knots are ubiquitous in the world around us, appearing as...

A close-up of a thick, white, coiled rope with a blue stripe

Pluto Isn’t a Planet

In 2006, the International Astronomical Union adopted a definition of...

A detailed image of the dwarf planet Pluto

The White Knight: Ice

The polar regions are still some of the most inaccessible...

A large, textured tabular iceberg floats in blue water, with smaller ice fragments nearby

Should We Manipulate People’s Emotions?

We think of emotions as being central to our characters...

A hand manipulates a wooden puppet with strings

The Sky at Night, Tonight: A New View of the Changing Sky

On a remote mountain top in Chile, scanning the sky...

The Vera C. Rubin Observatory illuminated at night under a sky filled with the Milky Way galaxy

The Shape of Tiles: Regular and Irregular, Hard and Soft

Tiling involves filling a plane or space with repeated elements...

A close-up view of a floor tiled with a black, white, and gray geometric pattern creating a 3D cubic illusion

Why Do We Love?

Untold millions of words have been written about love. It...

Minimal waist-up portrait of a happy gay couple looking at the camera

A Living Planet

Earth is a living planet. But how much life is...

Several small, light-colored bonnet mushrooms with bell-shaped caps and thin stems growing among green foliage and brown debris on a forest floor

The Universe’s 100th Birthday: Galactic Fireworks and Little Red Dots

100 years ago this year, Edwin Hubble published the first...

Interacting spiral galaxies Arp 273, with the larger galaxy tidally distorted into a rose-like shape by its companion