& TOMORROW
Open observatory / 02
A world of signals.
A new way to listen.
Explore Earth’s Schumann resonances, turn measured space-weather data into sound, and find radio from around the world. Three different ways to listen, with the source always in view.
Hear a changing Sun.
Request recent NOAA observations, then hear their values mapped to musical pitch. This is data sonification, not a recording of the Sun or Schumann resonance.
Source timestamps appear here.
Nothing is simulated in this chart.
Data is requested only when you press Load. No account needed.
Sonify your own numbers, privately
Want more formats or sound-to-image tools? Open the Data & Sound app ↗ for tables, JSON, waveforms, image scans and microphone visualizations.
Paste two columns: UTC timestamp,value. Optional first row: time,value. Use ISO dates with Z or a UTC offset. 2–1,000 rows, up to 100 KB. Values must be finite. Nothing is uploaded; data stays in this page until you leave or load another series.
Earth’s resonant cavity.
Lightning excites extremely low-frequency electromagnetic resonances between Earth’s surface and ionosphere. The fundamental is near 7.83 Hz; actual peaks vary. These are electromagnetic fields, not ordinary sound waves in air.
SOS70 / Tomsk observations
View the official Tomsk ELF spectrogram and station information at SOS70. Its charts are not copied, embedded or converted here. The site restricts reuse; no raw SOS70 waveform or live numerical feed is available to this player.
Open SOS70 official source ↗Listen to a real ELF archive.
Sierra Nevada, Spain · 1 March 2015, 00:49:34–00:59:34 UTC. Ten minutes of north–south receiver data, filtered 6–25 Hz and played 32× faster in 18.75 seconds. This is archived measurement, not live SOS70. It includes noise and is not a calibrated magnetic-field recording.
Data: A. Salinas, J. Rodríguez-Camacho, J. Portí, M. C. Carrión, J. Fornieles-Callejón & S. Toledo-Redondo (2022). Processing here: DC removal, 6–25 Hz bandpass, normalization, fades and 32× acceleration. Dataset · CC BY 4.0
Compare the reference tones.
Generated sine tones use the four nominal values above, shifted upward ×32. This 12-second educational demo is not measured data, not live SOS70 audio, and makes no health or prediction claim.
Audible tones: 250.56, 457.6, 665.6 and 873.6 Hz.
Generated demo only. Start quietly with your device volume low.
Spacecraft recordings · archived, not live
Listen beyond Earth.
Real instrument signals made audible by mission teams. These are radio or plasma waves, not air carrying sound through space.
Jupiter’s auroras
27 August 2016. Juno’s Waves instrument observed radio emissions around Jupiter. NASA’s presentation shifts 7–140 kHz signals down into human hearing across roughly 13 hours. Play starts at the audible segment (27.65–52.40 seconds) of the original presentation, skipping its silent titles.
NASA source & visual spectrogram ↗Credit: NASA/JPL-Caltech/SwRI/University of Iowa.
Plasma waves near Saturn
2 September 2017. Cassini recorded plasma-wave signals linked to Saturn and its moon Enceladus. This NASA presentation converts instrument observations into audible sound, about 29 seconds long.
NASA source & visual spectrogram ↗Credit: NASA/JPL-Caltech/University of Iowa.
The NOAA panel above sonifies selected solar measurements, not the Sun’s full spectrum. For archived solar interior oscillations, open the SOHO/MDI solar sound page ↗. Its velocity signals near 3 mHz were accelerated 42,000× by Alexander Kosovichev. Not every planet has a recording in this collection.
Broadcast audio · not scientific sonification
Tune into somewhere else.
A curated worldwide starting point, not every station. Search by station, country, language or region.
Live broadcaster stream · Seattle, USA
KEXP 90.3 FM
Independent music and discovery. KEXP publishes this stream for external players.
Official stream information & fallback ↗Off. Loads only when you press Play.
Station cards open the broadcaster’s own website in a new tab. This page doesn’t rebroadcast or record those streams. Internet listening is not an RF receiver: a station’s FM/AM frequency is a label, not something your device is tuning over the air. Playback on external sites is controlled there, not by this page’s Stop button.