On 14 December 1960, the Brookings Research Institute in
On 14 December 1960, the Brookings Research Institute in
On 15 April 1961, an article entitled “Interstellar and Interplanetary Communication by Optical Masers” by Dr. Robert N Schwartz and Professor Charles H Townes was published in the journal Nature, proposing optical SETI.
This incident is Case 45 in Isaac Koi's "Top 100" article, since it was referred to in 57 of the books covered by that article.
This was Project Blue Book Case Number 7372.