How to play

Planets circle a sun and chime as they cross the line above it. Build a sky that sings in free play, or rebuild Today's Sky from its song.

Each planet chimes as it crosses the line above the sun.

Free play

Tap a ring to add a planet. Tap a planet, or the glowing trail behind it, to remove it.

Each planet rings as it passes the line above the sun. Every ring has its own note: inner rings circle faster and sing higher.

Every sky is a 12-second song that loops forever, and no combination can sound wrong. When all your planets cross the line together, they're aligned.

Space bar pauses. Share copies a link that plays exactly your sky.

Open free play

Today's Sky

There's one new sky each day, the same for everyone. Press Listen to hear its 12-second song. Its planets stay hidden, but each one lights the line as it chimes, in its ring's color. Then you rebuild the sky.

Tap a ring to add a planet; tap a planet to remove it. Inner rings sing higher and circle faster. Listen again replays the song from the top as often as you like.

Checking your sky

Skies grow through the week (Mon–Tue 2 planets, Wed–Sat 3, Sun 4). When yours has all its planets, check it. You get 5 checks, and each one marks your planets:

right ring, in time
right ring, out of time
an amber arrow points the way to move it (two chevrons: it's far)
not in the sky (or an extra on its ring)

Timing is about the rhythm, not where the song starts: a sky that loops the same way is right.

Tip: anchor on the opening chord, the chimes that start the song. Then listen for where planets meet: each moment two chime together pins down their timing.

Sharing and streaks

When you're done, Copy result copies one row of dots for each try. The dots say how close a try was, never which planets were right, so sharing spoils nothing. Win on days in a row to build a streak. A new sky arrives at midnight, your time.

New here? The practice sky walks you through one, with all the tries you need.

Play Today's Sky Play the practice sky

Sound

The sky is made of sound. If you hear nothing, check your volume (and, on a phone, the silent switch). Browsers only start sound after a tap, so tap the sky (or Listen) first.