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When to Use the Solar Flare Classification 3D Explorer - Best Sessions and Limits

Last reviewed: 2026-07-25

Open the Solar Flare Classification 3D Explorer when you want to learn what the GOES A/B/C/M/X letters and numbers mean and how they map to NOAA's Radio Blackout scale - not to monitor today's actual solar activity or get a live flare alert.

A five-minute classroom demo

A five-minute classroom demo starts when you open the Solar Flare Classification 3D Explorer, drag the class slider from A up to X20, and pause at M5 and X1 to see exactly where NOAA's alert level and Radio Blackout ratings begin.

Sessions this explorer does not fit

Sessions this page does not fit are checking today's real solar activity or getting a live space-weather alert - for that, see NOAA's Space Weather Prediction Center at spaceweather.gov. For the plasma cloud a strong flare can throw outward, see the Coronal Mass Ejection 3D Explorer; for the 11-year sunspot count this activity rides on, see the Sunspot Activity 3D Explorer. Walk the controls in the step-by-step guide.

← Back to Space 3D

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Last updated: Jul 24, 2026

Reviewed by the Free Tool Online editorial team · Tested in the current versions of Chrome, Firefox, Safari, and Edge before publishing. No account is needed to use any tool. Report a bug - we triage within 72 hours. · Last refreshed April 2026.

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