Live · refreshed when you open the page
Today, above you.
These are the measurements space-weather forecasters watch. Each card shows where the number comes from and when it was taken, so you can see how fresh it is.
Right now: the live cards below show the current values.
1 · On the sun
What the sun is doing
Flares and active regions start here. Light from a flare reaches Earth in about eight minutes.
The sun today
Image unavailable. Open NASA SDO
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Bright loops mark active regions, where flares start. Dark patches are coronal holes, the source of fast solar wind.
2 · Between the sun and Earth
What is on its way
Measured by spacecraft about 1.5 million kilometres sunward, roughly an hour before it reaches us.
3 · At Earth
How Earth’s magnetic field responds
The Kp index, the three-day outlook, the aurora oval and Earth’s electromagnetic background.
Northern lights tonight
Image unavailable. Open NOAA
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Where aurora is likely right now. In central Europe it usually takes Kp 7 or more to see it low on the northern horizon.
Schumann resonance today
The Tomsk station in Siberia publishes one of the most-watched live spectrograms. We link to it directly while we arrange permission to show it here.
Live data: NOAA Space Weather Prediction Center, GFZ Potsdam (Kp), NASA Solar Dynamics Observatory. Values are shown as published; gaps stay visible.
Retrieved . Kp values here use NOAA’s provisional feed; GFZ is the definitive-index reference.
Try it
How long until it reaches us?
Light from a flare arrives in about eight minutes. The solar wind takes days from the sun and about an hour from the L1 monitor. Enter a speed or use today’s live value.
What do today’s numbers mean?
Noticed something today?
Write it down together with the time. Over a few weeks, your notes and these numbers start to tell a story, or show that there isn’t one. Both are worth knowing.