sunspot activity

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OSO Launch. NASA public domain image colelction.

OSO Launch. NASA public domain image colelction.

NASA successfully launched more than 200 Earth-orbiting satellites, including Goddard's eighth Orbiting Solar Observatory aboard this Delta rocket on June 21,1975, at Cape Canaveral, Florida. The satellite-the ... More

A polished steel ball is used to reflect sunlight so that weather technicians can observe sunspot activity safely. The technicians are assigned with the Solar Optical Observing Network (SOON)

A polished steel ball is used to reflect sunlight so that weather tech...

The original finding aid described this photograph as: Base: Holloman Air Force Base State: New Mexico (NM) Country: United States Of America (USA) Scene Camera Operator: Eddie Mccrossan Release Status: Re... More