Hear the
planet.

Close your eyes. Press play on Earth.

You don’t need to see Earth to know it.

NASA’s views of our planet, turned into music. A DJ tells you exactly what you’re hearing.

Why we built it

The planet is changing. Millions of people have never been shown how.

  • Warming oceans
  • Retreating ice
  • Shifting air

NASA shows it only in images. Andromeda lets you hear it.

How it works

First you learn the sounds. Then you hear the planet.

  1. Pick your session

    Oceans, ice, air or land. By voice, keyboard or touch.

  2. Meet the sounds

    The DJ plays each one alone first: “warm water sounds like this.”

  3. Hear it move

    The image plays left to right. When the data rises, so does the music.

What you see → What you hear

Nothing you hear is random.

Color
Chords
Pixel density
Rhythm
Brightness
Volume
Shapes
Instruments

Try it

Press play. This is what Andromeda sounds like.

Real NASA visualizations, with the music the app builds from them. Turn your sound on.

Stars

Caldwell 73

A ball of ancient stars, played the way NASA played Westerlund 2.

Hubble image of Caldwell 73: a dense ball of thousands of stars on a black background. It is brightest and most crowded at the center, with blue and gold stars scattered toward the edges.
Hubble Space Telescope · 1:04

What you’re hearing

A line sweeps the image from left to right in 60 seconds. Higher in the image means a higher note. Each star is a plucked harp note, louder when the star is brighter. Hot blue stars ring as bells. The glowing core plays as bowed strings that swell with the light. Left and right in the image are left and right in your ears. Every instrument is a real recording.

What you’re seeing

Caldwell 73, also called NGC 1851, is a globular cluster about 39,000 light-years away in the constellation Columba. Hundreds of thousands of very old stars are packed into one ball. The center is so crowded that it glows as a single bright haze, and the stars thin out toward the edges.

Credits

Image: NASA, ESA and G. Piotto (Hubble). Sound: Andromeda, with the method of NASA's Westerlund 2 sonification (Chandra, SYSTEM Sounds).

See it in action

Andromeda App The planet, in your pocket.

Thirty seconds inside the app: a track plays, the data turns into sound, and help is always one tap away.

  • Now playing

    Every track says what it is and which NASA view it comes from.

  • “What am I hearing?”

    One tap and the DJ explains the sound playing right now.

  • Repeat legend

    Hear each sound alone again, whenever you need a reminder.

Andromeda on iPhone

The albums

Four sides of one planet. Zero screens required.

  • Oceans

    Currents turning, warm water spreading.

  • Ice

    Sea ice growing, then pulling back.

  • Air

    What moves through the sky above you.

  • Land

    The ground changing with the seasons.

Designed blind-first

Not adapted for blind listeners. Built for them.

One test for every decision: does it work with your eyes closed?

  • A guide, not a manual

    The DJ leads. No hunting for buttons.

  • Every sound explained

    Ask “what am I hearing?” anytime.

  • Your voice, your choice

    Pick the narrator you follow best.

  • Say it and it plays

    “Play sea ice,” from any screen.

  • Touch the data

    Hear what’s under your finger.

  • Screen reader ready

    Every control announces itself.