The newly-formed National Aeronautics and Space Administration launches its first space probe, Pioneer 1, atop a Thor-Able booster. Intended to image the moon at the infrared end of the spectrum from close range, Pioneer 1 is the victim of a technical error which instead sends it into an 80,000 mile arc which eventually brings it back into Earth’s atmosphere. Its flight lasts just 43 hours, but it does yield some information about the radiation belts surrounding Earth, as well as the first experiment to measure the density of micrometeor impacts registered by an onboard sensor.
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