The aurora and solar activity archive
Searching for historical solar and auroral activity data? The archive is filled with data between the year 1996 and yesterday. You can choose a viewing mode to quickly look for days with interesting space weather and pick a day to view the archived data for that day with more detailed space weather data.
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Latest news
Wednesday, 1 July 2026
X1.1 solar flare, G2 watch
Thursday, 4 June 2026
G3 geomagnetic storm watch for 4 and 5 June
Wednesday, 13 May 2026
Coronal hole faces Earth
Latest forum messages
Ask your obscure/"stupid" space weather questions. 517AR14479 CMEs (30 June 2026) 36Guide - 2026/06/30 X1.1 CME 10AR 4479 146Changelog/Featurelog 184
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Space weather facts
| Last X-flare | 2026/06/30 | X1.1 |
| Last M-flare | 2026/07/01 | M2.6 |
| Last geomagnetic storm | 2026/06/25 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (2%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| May 2026 | 101.4 +22.1 |
| Last 30 days | 103 +4 |
This day in history*
Aurora on this day in history
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