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hubie [soylentnews.org] writes:

The ESA-NASA Solar and Heliospheric Observatory (SOHO) [nasa.gov] is celebrating its twenty-fifth launch anniversary [nasa.gov].

Two and a half decades of scientific discovery is a major milestone for any space mission. But when the spacecraft at the heart of the celebration was only designed to last for two years, and operates from an area outside the Earth's protective magnetosphere, it's an unalloyed triumph in the history of space exploration.

In celebration, NASA posted a really cool video [youtube.com] from the Large Angle and Spectrometric Coronagraph Experiment (LASCO) [navy.mil] instrument showing a movie of its observations of the Sun over the whole mission.

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