Space Weather Message Code: ALTEF3 Serial Number: 3591 Issue Time: 2025 Dec 31 1632 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3590 Begin Time: 2025 Dec 21 1425 UTC Yesterday Maximum 2MeV Flux: 5613 pfu Comment: Electrons went over threshold at 31/1255 through 31/1530 UTC. Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.Thank you for using the Product Subscripti ...Continue Reading

:Product: Solar Region Summary :Issued: 2025 Dec 31 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 365 Issued at 0030Z on 31 Dec 2025 Report compiled from data received at SWO on 30 Dec I. Regions with Sunspots. Locations Valid at 30/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4317 N11W62 014 0200 Dso 05 07 Beta-Gamma 4321 S10W90 042 0320 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3590 Issue Time: 2025 Dec 30 0502 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3589 Begin Time: 2025 Dec 21 1425 UTC Yesterday Maximum 2MeV Flux: 6690 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.Thank you for using the Product Subscription Service. If you would like to remove a product subscription or updat ...Continue Reading

:Product: Solar Region Summary :Issued: 2025 Dec 30 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 364 Issued at 0030Z on 30 Dec 2025 Report compiled from data received at SWO on 29 Dec I. Regions with Sunspots. Locations Valid at 29/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4317 N12W50 015 0200 Cso 05 05 Beta 4321 S09W77 042 0320 Dkc 0 ...Continue Reading

NASA News   MEDIA ADVISORY M25-104 Dec. 29, 2025 HUMANS IN SPACE NASA to Preview US Spacewalks at Space Station in January    NASA astronaut and Expedition 72 Flight Engineer Nichole Ayers is pictured during a spacewalk to upgrade the orbital outpost’s power generation system and relocate a communications antenna. Credit: NASA Editor's note: This version was updated to correct the email subject line. NASA astronauts will conduct a pair ...Continue Reading

Sent using nasa.gov email in the from: NASA News   MEDIA ADVISORY M25-104 Dec. 29, 2025 HUMANS IN SPACE NASA to Preview US Spacewalks at Space Station in January    NASA astronaut and Expedition 72 Flight Engineer Nichole Ayers is pictured during a spacewalk to upgrade the orbital outpost’s power generation system and relocate a communications antenna. Credit: NASA NASA astronauts will conduct a pair ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3589 Issue Time: 2025 Dec 29 0806 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3588 Begin Time: 2025 Dec 21 1425 UTC Yesterday Maximum 2MeV Flux: 8999 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.Thank you for using the Product Subscription Service. If you would like to remove a product subscription or updat ...Continue Reading

Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA SPACE WEATHER ADVISORY OUTLOOK #25-48 2025 December 28 at 6:34 p.m. MST (2025 December 29 0134 UTC) **** SPACE WEATHER OUTLOOK **** Summary For December 22-28 -An R2 (Moderate) event was observed on 27 Dec. -R1 (Minor) events were observed on 28 Dec. -G1 (Minor) storming was observed on 22 Dec. Outlook For December 29-January 4 -There is a chance for R1-R2 (Minor-Moderate) events through ...Continue Reading

:Product: Solar Region Summary :Issued: 2025 Dec 29 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 363 Issued at 0030Z on 29 Dec 2025 Report compiled from data received at SWO on 28 Dec I. Regions with Sunspots. Locations Valid at 28/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4312 N19W74 053 0020 Hsx 02 01 Alpha 4316 S07W72 051 0010 Axx ...Continue Reading

:Product: Solar Region Summary :Issued: 2025 Dec 28 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 362 Issued at 0030Z on 28 Dec 2025 Report compiled from data received at SWO on 27 Dec I. Regions with Sunspots. Locations Valid at 27/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4312 N19W61 053 0030 Hsx 02 01 Alpha 4316 S07W59 051 0010 Hrx ...Continue Reading