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✶Rayotron✶ (rayotron@ravenation.club)'s status on Monday, 05-Aug-2024 08:56:55 JST ✶Rayotron✶

For #SilentSunday a silent satellite. LAGEOS-1 is a passive 400kg brass/aluminum/glass/germanium sphere. It's made to reflect laser beams from Earth to measure tectonic plate movements associated with continental drift.
In the silence of space since May 1976, it contains a plaque designed by Carl Sagan depicting Earth's geologic past, present, and future. #space #geology #science https://lageos.gsfc.nasa.gov/
In conversation about 4 months ago from ravenation.club permalink
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1. Two images, one above the other. The top one is a big metal sphere with 426 round glass reflectors embedded into it. Below is a plaque with three drawn images of Earth in vertical formation. The top is our planet 268 million years ago when the continents were bunched together, the middle is the present day, and the bottom is the estimated position of the continents in 8.4 million years (the time when the satellite will fall to Earth). The continents will still be quite recognizable then.
  https://media.ravenation.club/media_attachments/files/112/866/629/859/463/351/original/12bcb1e2bc61f689.jpg
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  LAGEOS: LAser GEOdynamic Satellite
  
  The LAser GEOdynamics Satellite (LAGEOS) was designed by NASA and launched May 4, 1976. It was the first spacecraft dedicated exclusively to high-precision laser ranging and provided the first opportunity to acquire laser-ranging data that were not degraded by errors originating in the satellite orbit or satellite array. LAGEOS-2, based on the original LAGEOS design, was built by the Italian Space Agency and launched on October 22, 1992.

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