Let's zoom in🔍These @NSF #InouyeSolarTelescope images reveal fine structures of a sunspot—bright umbral dots in the dark central umbra and penumbral filaments surrounding it. These details help scientists study sunspot magnetic dynamics at a level made possible by the Inouye!

Data by National Science Foundation (@NSF) GONG, operated by the NSO. Additional Credits: Jain/Williams/NSF/GONG/NSO/@AURADC with contributions by NOAA. #NSFfudned #SpaceWeather.

Solar Activity Report: June 30-July 6, 2025.Activity remained low, with two C2.5 flares from Regions 4126 and 4130. Several filament & prominence eruptions generated CMEs; none were Earth-directed. Helioseismic mapping of the far side revealed no signs of notable active regions.

@NSF These components are like cameras that "encode" the position of the aperture by reading QR codes, an important function to accurately track the Sun as it moves across the sky.

Up, up, and 58 ft away! 🏗️ At one of the highest points inside the @NSF Inouye Solar Telescope dome, NSO staff safely serviced the Enclosure Altitude Encoder used to accurately track the Sun. A rare point of view, captured from a crawler lift, with safety always the top priority.

🧵(3/3): Data by National Science Foundation (@NSF ) GONG, operated by the NSO. Additional Credits: Jain/Williams/NSF/GONG/NSO/@AURADC with contributions by NOAA.

🧵(2/3): Active Region 14105, located in the southern hemisphere, has re-emerged after completing its far-side transit. It has not yet received a NOAA designation, as newly visible active regions are typically assigned one upon their appearance on the eastern solar limb.

🧵(1/3): Solar Activity Report: June 23-29, 2025. Solar activity remained relatively low compared to recent weeks, with only a handful of low-intensity C-class flares and no significant eruptions recorded.

New research from @NSF @NatSolarObs reveals a major calibration issue: a key NASA instrument could be detecting only half the Sun’s true magnetic strength—impacting how we predict solar storms that threaten satellites, astronauts, and power grids.

A compact brightening bursts to life at the edge of a sunspot! NSO scientists at the @NSF Inouye Solar Telescope captured one of the most detailed views of a small yet powerful solar explosion. This outburst of energy is estimated to be on the order of 10 billion lightning bolts!

Congratulations to the NSF-DOE @VRubinObs on the release of its first light images! After years of design, construction, and dedication, Rubin has officially opened its eyes to the universe—and the view is breathtaking.

🧵4/: Meanwhile, helioseismic imaging indicates that AR 14105 is progressing across the far hemisphere and is projected to reappear on the Earth-facing side by June 29. Data by @NSF GONG, operated by the NSO. Additional Credits: Jain/Williams/NSF/GONG/NSO/@AURADC.

🧵3/4: AR 14114 is now nearing the west limb and is expected to complete its transition to the far side shortly. No Earth-directed coronal mass ejections (CMEs) were observed during the reporting period.

🧵2/4: Meanwhile, AR 14117 contributed a couple of M-class flares, and numerous other regions across the solar disk continued to generate C-class events. In contrast, the final two days of the week were relatively subdued, marked by only a few weak C-class flares.

🧵1/4: Solar Activity Report: June 16-22, 2025.Solar activity remained at moderate to high levels for much of the week before tapering off toward the end. Several intense M- and X-class flares erupted from Active Region 14114, including an X1.2 on June 17 and an X1.9 on June 19

Helioseismic data from National Science Foundation (@NSF) GONG, operated by the NSO, helped contribute to a new study that investigates how deep plasma flows around sunspots reshape the Sun’s rotation, and hint at mysteries below its surface.

🔭Big moment ahead for astronomy! Our friends at @VRubinObs are counting down to first light, unveiling their first images this Monday, June 23, at 11am US EDT. We can’t wait to preview how they will #CaptureTheCosmos in its decade-long survey!.

In a prior study led by NSO scientist Dr. David Kuridze, the team used the @NSF Inouye Solar Telescope's VBI to capture this G-band (430 nm) image of the Sun’s surface. With ~20 km resolution, it reveals incredible details including ultra-thin granular stripes just 20–50 km wide.

Proud to have been a part of #AAS246 in Anchorage, AK! From our exhibit booth to an NSO Town Hall—and @NSF GONG and NSF Inouye Solar Telescope features in SPD sessions—it was an insightful showcase of solar science, collaboration, and community. Thank you for connecting with us!

🧵(4/4): Helioseismic maps of the far hemisphere reveal an active region in the northern hemisphere, expected to emerge on the East limb around June 21. Data by @NSF GONG, operated by the NSO. Additional Credits: Jain/Williams/NSF/GONG/NSO/@AURADC.