Live On WCCO: Tune In 10 A.M. Saturday To Watch Sen. Al Franken Debate Challenger Mike McFadden

High Frequency Radio Signals

(credit: NASA)

NASA’s High Frequency Radio Signals

There’s a NASA spacecraft that has recorded natural high frequency radio signals. Some say they sound like whales; others say they sound like crickets.

10/02/2012

Follow

Get every new post delivered to your Inbox.

Join 1,916 other followers