Mystery of fastest white dwarfs solved!

Artist’s concept of a white dwarf remnant being given a high-speed shove from its system. Such…

CME impact and high-speed stream forecast to enhance geomagnetic activity through September 8

A large filament eruption was observed at 19:45 UTC on September 4, 2025, followed by at…

Northeast HamXposition Draws Crowds

09/05/2025 By ARRL New England Division Vice Director Phil Temples, K9HI    The Northeast HamXposition (“HamX”)…

Ham YouTubers Boost ARRL Teachers Institute

09/05/2025 The ARRL Teachers Institute on Wireless Technology is getting a boost, courtesy of the ham…

Team USA Earns Medals at ARDF World Championships in Lithuania

09/05/2025 By Charles E. Scharlau, NZØI, USA ARDF Co-coordinator Team USA brought home both individual and…

ARRL On the Air Yearbooks

09/05/2025 — Get active, get involved, and get on the air!    Enjoy On the Air…

ARRL Lab Helps Radio Amateurs Avoid Interfering With US Space Force Radar

09/05/2025 US Space Command headquarters is being moved to Huntsville, Alabama, known as “Rocket City USA.”…

The ARRL Solar Report

09/05/2025 Spaceweather.com for September 5 reports that a total lunar eclipseoccurs on September 7th.  However, it…

Possible galaxy spotted by JWST could be the earliest we’ve ever seen

The possible galaxy in an image from the James Webb Space Telescope NASA, ESA, CSA, CEERS,…

National Preparedness Month: 12 Ways to Prepare

09/05/2025 September is National Preparedness Month, and ARRL is working to arm members with knowledge and…