Replies

Just a little digging on the word "corona".

From Wikipedia:

The Corona program was a series of American strategic reconnaissance satellites produced and operated by the Central Intelligence Agency Directorate of Science & Technology with substantial assistance from the U.S. Air Force. The Corona satellites were used for photographic surveillance of the Soviet Union (USSR), the People's Republic of China, and other areas beginning in June 1959 and ending in May 1972.

On Aug 30, 2018 there were four posts with the word Corona and they were labeled as regarding satellites.

Q2013 Corona 1
Q2014 Corona 4
Q2015 Corona 8
Q2013 Corona 16

Notice the exponential growth of Corona. It's doubling.

From Wikipedia:

A satellite is a subviral agent composed of nucleic acid that depends on the co-infection of a host cell with a helper virus for its replication.