Back when I was prepping for the ham radio test, I didn't think my skills would be needed so soon.  The 'missing' NanoSat-D solar sail mission has appeared, but it can only be heard via radio at 437.275MHz.  So they need amateurs to listen and report when they heard it, quickly:
The FM amateur radio downlink on 437.275 MHz is the only source of spacecraft status, and more listeners are needed. The sail is set to deploy after 3 days. The battery may last a little beyond that. We need telemetry collected from all over the world.
Details on how to help at WDFD, urgent.  You can also read about the rescue effort at UniverseToday.  Just think-- you can be part of a satellite rescue operation!

Alex aka KB3VNB
Launching Project Calliope, sponsored by Science 2.0, in 2011
News every Tuesday at The Satellite Diaries, every Friday at the Daytime Astronomer