A group of students at Cornell University is seeking participation from radio amateurs who are equipped with satellite stations for help in listening for signals from a retroreflective laser sail that is scheduled to be deployed later this week. The sail is currently attached to a 1U CubeSat that was launched early Tuesday, December 2, 2025, from the International Space Station, but will separa...

Don’t miss it! The annual YouTube telethon to raise money for the ARRL Teachers Institute on Wireless Technology will be held on Saturday, November 29, 2025, beginning at 3 PM EST / 12 PM PST, on the Ham Radio Crash Course YouTube channel, hosted by Josh Nass, KI6NAZ.

Join Nass and several other amateur radio contributors for a fun and entertaining livestream. They’ll cover a variety of amateur ...

ARRL The National Association for Amateur Radio® announces the results of the 2025 ARRL Division elections.

In the ARRL Pacific Division, current Director John Litz, NZ6Q (1,270 votes), of Stockton, California, was declared the winner, defeating Bob Vallio, W6RGG (960 votes).

In the Southeastern Division, current Director Mickey Baker, N4MB (1,596 votes), of West Palm Beach, Florida, was declared...

Solar activity has remained low this past week. The largest flare
was a C9.9 on November 19 from a region just beyond the NE limb near
N17. Region 4284 grew slightly in the early part of the period but
was in decay after November 19.

New Region 4287 was numbered. A Type II radio sweep (estimated at
695 km/s) was observed on November 19 at 2215 UTC, likely associated
with a B9.0 flare from just beyond...