Unidentified Orbiting Objects in the 1950s?

We earlier discussed the enigmatic discovery of apparent transient sources in wide-angle photographic plates exposed in the Palomar Observatory Sky Survey between 1949 and 1956 in “Objects in Geosynchronous Orbit in the 1950s?” on 2022-05-14. One plate exposed in 1950 showed nine objects which disappeared in subsequent surveys and could not be found with a modern 10.4 metre telescope and CCD detector. These objects are consistent with sun glints from objects in geosynchronous orbit, but the first such satellite was not launched from Earth until 1963. Other transients are observed to occur along a line, which is what would occur during a long exposure tracking the stars, while an object in geostationary orbit would be following the Earth’s rotation.

In this interview, Beatriz Villarroel, lead author on both papers reporting the transients, updates the status of the observations and analyses and discusses prospects for follow-ups and searches for present-day transients with instruments coming on line in the near future.


We are having UFO physics workshops in Cortona, Tuscany May 23 to May 27, 2023 and also Oct 20 to Oct 27 will have ZOOM with other physicists besides me- no cost. To apply contact: sarfattituscanworkshop@gmail.com

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