National Solar Observatory

The mission of the National Solar Observatory is to advance knowledge of the Sun, both as an astronomical object and as the dominant external influence on Earth

[National Solar Observatory @NatSolarObs]

☀️ Ka Lā | The Sun, the Earth and Us 🌍 We’re proud to share a new @NSF documentary filmed on Haleakalā, Maui! Discover our timeless connection to the Sun and the groundbreaking science at the NSF Inouye Solar Telescope🎬: https://t.co/bHytc60Bc1

#NSFfunded #InouyeSolarTelescope

[National Solar Observatory @NatSolarObs]

Data by NSF-NOAA GONG, operated by NSF NSO. Additional Credits: Jain/Oien/NSF/GONG/NSO/AURA, with contributions by NOAA.

[National Solar Observatory @NatSolarObs]

Solar Activity Report: Oct. 12 -18, 2026

Solar activity remained predominantly at low levels throughout the reporting period, except on October 16, when activity briefly reached moderate levels following an M1.3 flare from active region 14551, the largest event of the week.

[National Solar Observatory @NatSolarObs]

No Earth-directed coronal mass ejections (CMEs) were observed. Current helioseismic far-side maps do not reveal any major active regions that are expected to emerge onto the Earth-facing hemisphere within the next few days.

[National Solar Observatory @NatSolarObs]

Several CMEs were originated from these flares, some with Earth‑directed components.

Data by NSF-NOAA GONG, operated by NSF NSO. Additional Credits: Jain/Oien/NSF/GONG/NSO/AURA, with contributions by NOAA.

[National Solar Observatory @NatSolarObs]

Solar Activity Report: Oct. 5-11, 2026 ☀️ Activity varied substantially, rising from low to high and then returning to low levels. Such variability is typical of the declining phase of the solar cycle, when sudden bursts of enhanced activity are common.

[National Solar Observatory @NatSolarObs]

All of these active regions were located in the northern hemisphere, which was more active than the southern hemisphere. The X‑ray flux remained near the B/C‑level boundary. The quietest day of the week was Oct. 11, when the flux stayed predominantly in the B‑level.

[National Solar Observatory @NatSolarObs]

☀️ A new 3D solar eruption model wins a NASA award! 🏆 Created by @NSF @NSO, @NASAGoddard & @USNRL, “CHAR” is a revolutionary methodology enabling a new era of reliable #spaceweather forecasting. Read the full story: https://t.co/wwsKVJW2Gm

[National Solar Observatory @NatSolarObs]

Data by NSF-NOAA GONG, operated by NSF NSO. Additional Credits: Jain/Oien/NSF/GONG/NSO/AURA, with contributions by NOAA

[National Solar Observatory @NatSolarObs]

Solar Activity Report: Sep. 28-Oct. 4, 2026 ☀️As solar cycle continues its declining phase, magnetic activity has decreased significantly. Solar activity remained at very‑low to low levels throughout the reporting period.

[National Solar Observatory @NatSolarObs]

No Earth‑directed CMEs were observed.

Current helioseismic map of the far side indicates no significant active regions poised to rotate onto the visible disk in the next few days. A few small regions, however, may turn toward Earth toward the end of the week.

[National Solar Observatory @NatSolarObs]

Two papers from the @NSF NSO engineering team detail vital updates to the NSF Inouye Solar Telescope’s cooling systems. Smart automation upgrades across 7 miles of piping ensure the observatory runs efficiently and sustainably ☀️🛠️ https://t.co/QnXF63FqpM

[National Solar Observatory @NatSolarObs]

The most recent helioseismic map of the far side shows no evidence of significant active regions that are likely to rotate onto the Earth‑facing hemisphere over the next few days.

[National Solar Observatory @NatSolarObs]

Solar Activity Report: September 21-27, 2026

Solar activity remained at low levels during the reporting period, with X‑ray flux generally at mid‑B levels except for a few impulsive low C‑class flares.

[National Solar Observatory @NatSolarObs]

Data by NSF-NOAA GONG, operated by NSF NSO. Additional Credits: Jain/Oien/NSF/GONG/NSO/AURA, with contributions by NOAA